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January 2020

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GroupDocs.Classification for .NET has been released

GroupDocs offers a programmable document or text classification API for .NET developers. You just have to add a single DLL (GroupDocs.Classification for .NET) as a reference in your .NET projects. It allows you to use two different taxonomies: IAB-2 (Interactive Advertising Bureau) and documents taxonomy to classify the text. Read more details here.

View contents of ZIP and TAR archives with GroupDocs.Viewer for Java

ZIP file is used to encase multiple files or folders as a single package that is further compressed to reduce the file size. Similarly, TAR is a Unix File Archive format used to archive the files and folders. In general, both ZIP and TAR are categorized as compression file formats. GroupDocs.Viewer for Java supports viewing the list of files and folders in the ZIP and TAR archives. This feature is quite handy when you want to view the list of the contents without extracting the archives. Read more details here.

Monitor document conversion status and progress with GroupDocs.Conversion for .NET

Using GroupDocs.Conversion for .NET, you can now monitor document conversion progress. The document converter listener implementation is used for monitoring conversion status and progress. Read more details here.

Redact contents in Apple’s Numbers spreadsheet using GroupDocs.Redaction for Java

Numbers is Apple’s application to create and view the spreadsheet documents in iOS or macOS. The spreadsheets created within this application are stored with .numbers extension and they are quite similar to the other spreadsheets, for example, that are created with MS Excel. We have extended the list of our support spreadsheet formats in the latest release and added the ability to redact the content in the Numbers spreadsheets. Read more details here.

Manipulate metadata properties in documents with all-new GroupDocs.Metadata for .NET

We have a major update for our customers who are using our metadata manipulation API – GroupDocs.Metadata for .NET. We have revamped the architecture of the API to improve and simplify the process of reading, updating, searching or removing the metadata properties from the documents. Please visit this article to get an insight.

 
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.NET code example: Compare two documents – Control header and footer comparison

Compare two documents but ignore or include header and footer content. Is this what you need in your document comparison application? Then you must try GroupDocs.Comparison for .NET. This back-end API can be implemented in any of your .NET application without any third party tool/software dependency. A new property HeaderFootersComparison is introduced in CompareOptions class. If you do not want to compare header/footer of a document, just set this property to false. Read more details here.

Java code example: Set PDF Compliance Level with GroupDocs.Redaction

GroupDocs.Redaction allows saving the redacted document into a rasterized PDF document. Since the PDF documents may possess different compliance levels such as PDF/A-1a, PDF/A-1b, we have made it possible for you to set the compliance level of the resultant PDF document as per your choice. For this, the enum PdfComplianceLevel has been added to com.groupdocs.redaction.options package. Read this article for more details.

Java code example: Work with security settings in PDF documents

The PDF documents allow setting security parameters to restrict unauthorized access. GroupDocs.Viewer for Java supports setting owner password, user password and PDF file permissions when rendering a file into a PDF document. Read more details here.

.NET code example: Convert EML or MSG files to PDF in C#

Do you want to build a web based, console or desktop application in C# that can convert an email file to a PDF? GroupDocs.Conversion for .NET is a one-stop solution for such a scenario. This API can be implemented in any of your (new or existing) .NET project without any dependency. Read more details here.

 
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GroupDocs.Total for .NET – The latest versions of GroupDocs .NET APIs packaged into one product suite.

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Important Bug Fixes in GroupDocs.Viewer for .NET 19.11

asp.net document viewer API

We have rolled out another update for GroupDocs.Viewer for .NET featuring some important bug fixes as well as an improvement related to the MSI package. This release hasn’t brought any new feature, still, it has addressed some important issues related to PDF, DWG and ODG file formats. Furthermore, a few compatibility issues which appeared under .NET Standard 2.0 have been resolved. So let’s have a brief overview of the bug fixes and improvements we have introduced in v19.11.

Issue: Rendering DWG to image (PNG/JPG) or PDF resulted in an empty output

This issue appeared for some specific DWG files when the contents of the source files were missing in the output and it resulted in blank/empty images or PDF documents.

Issue: The code hangs when rendering PDF document to HTML

One of our customers faced an issue where the API was taking too long to render a particular PDF document into HTML. We have resolved this issue and improved the performance of the API when rendering such PDF documents.

Issue: Console output is printed when rendering ODG images

In the previous versions, the unnecessary messages were printed in the console window while rendering the ODG images. Although it wasn’t affecting API’s functionality or the output, it might have created confusion for the developers. We have fixed this issue to prevent unexpected messages to be printed in the console window.

Issue: Compatibility issues under .NET Standard 2.0

In the previous release, we added the support of .NET Standard 2.0 for cross-platform development using GroupDocs.Viewer for .NET. This enhancement raised some internal compatibility issues, however, we have fixed these issues in v19.11.

Improvement: New ProjectGuid and UpgradeCode for MSI package

We have updated the unique identifier that is used by OS to identify the application installed with an MSI package. This update would require you to manually uninstall the previous version of GropuDocs.Viewer for .NET before installing v19.11 using the MSI package.

Since the updates are always important, we would recommend you to upgrade to v19.11 in your applications. In case you would face any issue or have any confusion, feel free to share with us via our forum.

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Classify text using IAB-2 or Document taxonomies in C#

A taxonomy or classification is basically an approach in which text is systematically identified and then organized. When you are dealing with a bunch of data (text based or documents), it becomes hard to find a topic of your need until and unless this data is classified or organized. Hence, you have to classify text in order to fetch data/information quickly.

GroupDocs.Classification for .NET

GroupDocs offers a programmable document or text classification API for .NET developers. You just have to add a single DLL (GroupDocs.Classification for .NET) as a reference in your .NET project. API allows developers to use two different taxonomies: IAB-2 (Interactive Advertising Bureau) and documents taxonomy.

IAB-2 text classification

IAB-2 categories texts into multiple topics and then identifies text based on the depth level. Call Classify method with a text as parameter to perform classification.

This text will be classified as Healthy_Living (IAB-2). Some more examples:

  • Sooner or later technology will overcome labor work – Technology_&_Computing (IAB-2)
  • This game has better graphics on Xiaomi Note 8 pro mobile – Video_Gaming (IAB-2)
  • We need groceries for the next month – Shopping (IAB-2)

Document taxonomy

Documents taxonomy is used to identify different document classes, such as Invoices, CVs, Forms, emails. Call Classify method for “document.pdf” file in the current directory with IAB-2 taxonomy and return 2 best results.

Call Classify method for “document.doc” file with Documents taxonomy, set precision/recall balance to “Precision” and return 4 best results.

API also facilitates classification of password-protected documents.

Below are some helpful resource for you

We’d recommend you to explore these resources, evaluate API and if there is any issue, you can raise it on forum.

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View Contents of ZIP and TAR Archives using GroupDocs.Viewer for Java 19.11

Java ZIP TAR Viewer

We are excited to bring a major release of GroupDocs.Viewer for Java API packaging a bunch of new features, improvements, and bug fixes. In the latest release, we have added the support of viewing archives and a couple of code files as well as provided the features of working with security settings in the PDF documents. So let’s walk through the latest release of our document viewer API for Java and check out what you are going to get after upgrading to v19.11.

View ZIP and TAR Archives

The first and foremost feature of v19.11 is viewing the list of files and folders in the ZIP and TAR archives. This feature is quite handy when you want to view the list of the contents without extracting the archives.

ZIP file is used to encase multiple files or folders as a single package that is further compressed to reduce the file size. Similarly, TAR is a Unix File Archive format used to archive the files and folders. In general, both ZIP and TAR are categorized as compression file formats.

In the following sections, you will see how to view a list of contents from the ZIP or TAR archives without extracting.

View List of Contents in ZIP or TAR Archives

When rendering an archive file as HTML, GroupDocs.Viewer returns an HTML page containing the list of items that are at the root of the archive. In the case of rendering as image or PDF, the API returns one or more pages depending on the number of items. The following code sample demonstrates this feature.

View List of Folders from ZIP or TAR

ZIP or TAR archives may contain multiple files and folders. These folders may further contain files as well as subfolders. GroupDocs.Viewer also allows viewing the folders that are located at the root of the archive. The following code sample shows how to get a list of folders from a ZIP or TAR archive.

View List of Subfolders within a Certain Folder of ZIP or TAR

There might be the case when you need to obtain the list of subfolders within a root folder in the ZIP or TAR archive. For such a case, you can specify the folder name using ArchiveOptions.setFolderName(“FolderName”) and the API will return the list of subfolders.

View List of Files within a Folder in ZIP or TAR

Now, once you have got the list of folders (and the subfolders as well), you can extract and view the items from your desired folder. The following code sample shows how to view the items of a specific folder in a ZIP or TAR.

For more details on rendering archives, please visit working with archives.

Working with Security Settings in PDF Documents

The PDF documents allow setting security parameters to restrict unauthorized access. The security can be enabled using:

  • Owner password – The password which is required to change document permissions.
  • User password – The password required to open the document.
  • PDF file permissions – The permissions to allow or deny printing, modification and data extraction.

In the latest release, we have added the feature of setting the above-mentioned security settings when rendering a file into a PDF document. The following code sample shows how to set the owner password, user password, and the permissions to deny the printing.

Detecting Security Settings in PDF Document

You can also check the security settings that are applied to a particular PDF document. For example, you can check if printing of the document is allowed or not as shown in the following code sample.

Support for Viewing Code Files

In addition to the support of ZIP and TAR files, we have also added the feature of viewing C# (.cs) and Visual Basic (.vb) code files.

Bug Fixes

The following is the list of bugs that are fixed in v19.11.

  • Output extension is empty when saving HTML page into cache
  • Object null reference exception when rendering DWG document
  • The Watermark opacity is set twice when rendering as HTML
  • The separator is wrong for the opacity value
  • File is corrupted or damaged exception for presentation documents
  • Unable to render .xls file with exception “file is corrupted or damaged”

Improvement

We have made the following improvements in v19.11.

  • Improved performance for rendering PSD image format into PDF
  • Improved rendering Dicom, Dng and WebP formats into PDF
  • Extended support for CellsOptions.setTextOverflowMode option for rendering the document into image
  • Extended support for CellsOptions.setTextOverflowMode option for rendering into PDF
  • Rendering contact photo from vCard file format (VCF)
  • Improve output for rendering zip archives

Well, this was a brief overview of the major features as well as improvements and bug fixes. You can also visit the release notes of GroupDocs.Viewer for Java 19.11 to know about the public API changes. Visit the documentation of GroupDocs.Viewer for Java for more details and code samples of every feature. You can download/clone the source code examples from the GitHub repository.

In case you find any issue while using our API, we are always available to provide you free support on our forum.

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Convert EML or MSG file to PDF in C#

Do you want to build a web based, console or desktop application in C# that can convert an email file to PDF?

GroupDocs.Conversion for .NET is a one-stop solution for such a scenario. This API can be implemented in any of your (new or existing) .NET project without any dependency. Supported email formats are

  • MSG
  • EML
  • EMLX

API Usage and Implementation

You have to add API reference in your project either by downloading the DLL or by installing NuGet package. Now, few lines of code and that’s it.

You will get all details in the output PDF like recipients, subject or any image attachment.

Have a look at the converted PDF file

Explore our open source GitHub example project and documentation. If you still face any issue, post it on forum.

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How to Redact in Word Processing Documents Using C# or Java Programming

How to redact in Word – The redacted meaning is extensively searched over the internet now a days . C# or Java programming developers might want to upgrade their editing apps by adding a feature to redact in Word, redact PDF or they might need some redacted text in many kinds of documents. If you are a developer and want to enable text redaction in your app , the stuff below is definitely for you.

Why redacted information in the documents is remarkable

how to redact in word

A redacted document contain touchy data is vital to each person, extending from a sole owner to government offices. Nobody likes it when their private or secret data fall into some inappropriate hands. This routine is likewise regular among legal counselors. Nevertheless, how to redact in Word documents is not so simple. The vast majority have committed errors previously in this regard. Utilizing incorrect strategies to redact your data will prompt the spillage of your private information. Many people are using wrong techniques like erasing, changing the text color to white or utilizing obsolete apps to make redacted text in their documents.

The following section shows that how Java orC# Programming developers can do it using their coding editors.

Text redaction in your word documents using C# or Java APIs

Using GroupDocs.Redaction premise APIs you can simply write a program to redact the information in variety of documents or you might want to add text redaction feature in your editing apps. If you are going to make a
redaction software, you might be interested in metdata redactions, image redactions, annotation redactions,or spreadsheet redactions.

Lets learn how simply the C# or Java Programming developers can write the code to redact in Word documents

The GroupDocs.Redaction APIs enable you the text redaction in two ways”

  1. Exact phrase redaction
  2. Using regular expression

Using exact phrase redaction

The example below shows textual redaction by replacing personal exact phrase “John Doe” with “[personal]”: 

using (Redactor redactor = new Redactor(@"sample.docx"))
{
  redactor.Apply(new ExactPhraseRedaction("John Doe", new ReplacementOptions("[personal]")));
  redactor.Save();
}

Java code will look like this:

final Redactor redactor = new Redactor("sample.docx");
try
{
    redactor.apply(new ExactPhraseRedaction("John Doe", new ReplacementOptions("[personal]")));
    redactor.save();
}
finally { redactor.close(); }

For a case sensitive redaction, you can pass a constructor parameter and corresponding public property like: 

using (Redactor redactor = new Redactor(@"sample.docx"))
{
  redactor.Apply(new ExactPhraseRedaction("John Doe", true /*isCaseSensitive*/, new ReplacementOptions("[personal]")));
  redactor.Save();
}

Java code will look like this: 

final Redactor redactor = new Redactor("sample.docx");
try
{
    redactor.apply(new ExactPhraseRedaction("John Doe", true /*isCaseSensitive*/, new ReplacementOptions("[personal]")));
    redactor.save();
}
finally { redactor.close(); }

If you need a color box over the redacted text, you can use color instead of replacement string. The redaction will erase matched text and put a rectangle of the specified color in place of redacted text: 

using (Redactor redactor = new Redactor(@"sample.docx"))
{
  redactor.Apply(new ExactPhraseRedaction("John Doe", new ReplacementOptions(System.Drawing.Color.Black)));
  redactor.Save();
}

Java code will look like this: 

final Redactor redactor = new Redactor("sample.docx");
try
{
    redactor.apply(new ExactPhraseRedaction("John Doe", new ReplacementOptions(java.awt.Color.RED)));
    redactor.save();
}
finally { redactor.close(); }

Using regular expression

The example below shows the redact out any text, matching “2 digits, space or nothing, 2 digits, again space and 6 digits” with a blue color box: 

using (Redactor redactor = new Redactor(@"sample.docx"))
{
  redactor.Apply(new RegexRedaction("\\d{2}\\s*\\d{2}[^\\d]*\\d{6}", new ReplacementOptions(System.Drawing.Color.Blue)));
  redactor.Save();
}

Java code will look like this: 

final Redactor redactor = new Redactor("sample.docx");
try
{
    redactor.apply(new RegexRedaction("\\d{2}\\s*\\d{2}[^\\d]*\\d{6}", new ReplacementOptions(java.awt.Color.BLUE)));
    SaveOptions saveOptions = new SaveOptions();
    saveOptions.setAddSuffix(true);
    saveOptions.setRasterizeToPDF(false);
    redactor.save(saveOptions);
}
finally { redactor.close(); }

The complete ready to run code sample is available on GitHub. You can explore API references for both Java and .NET versions. The GroupDocs also offers a one month free trial for both Java and .NET APIs. Please visit here to get the trial license.

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Monitor document conversion status and progress in C#

With the release of GroupDocs.Conversion for .NET 19.11 you can now monitor document conversion progress. There is one improvement and a few bug fixes introduced.

A new property Listener is added. The document converter listener implementation is used for monitoring conversion status and progress. Have a look at ConverterListener class that implements IConverterListener interface

Below is the usage

Coming to the improvement, MPP to XLS conversion is improved. Previously, there was issue in PNG image conversion (e.g. PNG to Word or Presentation). This issue is now fixed. There was another document conversion issue, a particular Word file to PDF with exception: Could not create the bitmap with the specified parameters. This bug is also resolved.

Get latest version from download section. If you want to evaluate API features, we have an open-source example project for you that could be downloaded from GitHub.

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Redact Content in Apple’s Numbers Spreadsheet using GroupDocs.Redaction for Java 19.11

Java API to redact text in word pdf excel powerpoint

The technology is growing at a huge pace and to stand strong through this storm you need to improve every day. Accordingly, to make you enhance your applications and take them to the next level, we keep trying to meet your emerging requirements by introducing new features and improving the existing ones. This is the reason we have introduced an optimized and simplified version of our Java document sanitization and text redaction API – GroupDocs.Redaction for Java.

The v19.11 of GroupDocs.Redaction for Java has been released with a new public API and a couple of enhancements. So let’s have a look at the enhancements and changes we have done in this version.

Support of Numbers Spreadsheets

Numbers is Apple’s application to create and view the spreadsheet documents in iOS or macOS. The spreadsheets created within this application are stored with .numbers extension and they are quite similar to the other spreadsheets, for example, that are created with MS Excel. We have extended the list of our support spreadsheet formats in the latest release and added the ability to redact the content in the Numbers spreadsheets. Visit spreadsheet redaction for more details on text redaction in spreadsheets.

Setting PDF Compliance Level

GroupDocs.Redaction also allows saving the redacted document into a rasterized PDF document. Since the PDF documents may possess different compliance levels such as PDF/A-1a, PDF/A-1b, we have made it possible for you to set the compliance level of the resultant PDF document as per your choice. For this, the enum PdfComplianceLevel has been added to com.groupdocs.redaction.options package. The following code sample shows how to set the PDF compliance level.

Breaking Changes

In v19.11, we have introduced a new public API which is designed to be simple and easy to use. The following are some notable changes we have made in this version and if you are already using the API, you will face these breaking changes once you upgrade.

  • The Redactor class is introduced to manage the document redaction process (instead of Document class from previous versions).
  • The methods redactWith() of the Document class are replaced with similar apply() methods in the Redactor class. 
  • The classes RedactionSummary, RedactionLogRecord, and MetadataFilter have been renamed to RedactorChangeLog, RedactorLogRecord, and MetadataFilters respectively.
  • A number of new exception classes and base exception class for GroupDocs.Redaction exceptions are added.
  • The constructor LoadOptions(DocumentFormatConfiguration) has been removed.
  • All the obsolete members have been removed from the public API.

Please visit the migration notes to see how the classes, methods and their usage has been changed in v19.11.

Try out the latest release by downloading or cloning the source code examples from GitHub. Visit documentation for more details on how to redact, hide, or find and replace text, metadata, and annotations in Word, Excel, PowerPoint, PDF, and image formats.

In case you find something difficult for you, feel free to let us know via our forum.

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Parsing Documents is Made Simple with GroupDocs.Parser for Java 19.11

GroupDocs.Parser for Java API is in the market since last year and it is proved to be one of the powerful document parser APIs that allows parsing and reading popular formats of word processing documents, spreadsheets, presentations, ebooks, emails, markup documents, notes, archives, and databases. Not only the text but you can also extract the images and metadata properties from various document formats including PDF, XLS, XLSX, CSV, DOC, DOCX, PPT, PPTX, MPP, EML, MSG, OST, PST, ONE and many more.

In order to improve the working of the API and simplify its usage for the developers, we have revamped its architecture from scratch. Now, the improved and simplified API is onboard as GroupDocs.Parser for Java 19.11.

What is new in v19.11?

In case you are using an older version. the following are the key reasons why you should upgrade to the latest release.

  • The Parser class is introduced to read and extract data from the document of any supported format.
  • The process of data extraction has been unified for all data types.
  • Product architecture has been revamped from scratch in order to simplify the usage of different options and classes to manipulate data.
  • The process of getting document information and preview generation has been simplified.

How to migrate?

Since the product has gone through the major updates, the classes, methods, and the way they are used have also been changed. However, we haven’t yet removed the legacy API from the package, instead, we have moved it to the com.groupdocs.parser.legacy package. Once you upgrade to the v19.11, you just need to perform project-wide replacements of packages from com.groupdocs.parser to com.groupdocs.parser.legacy. This way you will get rid of immediate build issues. You can then gradually proceed to update the source code and use the new public API’s classes and methods.

Code Comparison

Let’s now have a look at how the code has been changed for extracting text and metadata using the latest release.

Extracting Text from PDF

Legacy API

v19.11 or Later

Extracting Metadata

Legacy API

v19.11 or Later

For more details on code comparison, please have a look at the migration notes.

Well, this was a brief overview of the latest release. Now, you can evaluate the recent changes yourself by downloading or cloning the updated source code examples from the GitHub repository. We have also updated the documentation as per the latest release.

In case you would face any issue while migrating to the latest release or using any particular feature, feel free to let us know via our forum.

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25 percent off GroupDocs.Total – groupdocs.com Newsletter December 2019

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Share this issue:

Monthly Newsletter

December 2019

25% off Conholdate.Total
25% off GroupDocs.Total
 

Get 25% off GroupDocs.Total for .NET and Java. Quote HOLOFF2019 when placing your order.

 
Buy Now
 

This offer is only available on new GroupDocs.Total purchases and cannot be used in conjunction with other offers, renewals or upgrades. Only available directly from groupdocs.com, not through third parties or resellers. Ts&Cs Apply.

Product News
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Upcoming .NET API to classify your documents or text with IAB-2 or document taxonomies

The GroupDocs.Classification for .NET is going to be launched very soon. All you will have to do is integrate a DLL in your application and start document or text classification. As this will be a back-end API, you can implement it in your web, console or desktop applications. Read more details here.

GroupDocs free consulting services for customized projects

To extend our support services, we are starting the Free Consulting Services for you that will help you get free consultancy about how to use GroupDocs APIs in your projects

Free Consulting Services are for the customers who are looking to use our APIs but could not find how to get started. Also, there could be the case when you may find it difficult to implement a particular feature our API provides. In such cases, our experienced staff members would love to work with you to know your requirements and help you implement your desired functionality. Read more details here.

Search text or image signatures from documents in .NET with GroupDocs.Signature

Sometimes you need to scan a document to search if it is signed with a particular text or image. The manual inspection of the whole document or a bunch of documents is not an efficient way. To deal with such a case, we have introduced the feature of searching text or image signatures. Read more details here.

Insert links dynamically with GroupDocs.Assembly for .NET

Hyperlinks in the documents prove to be useful in many cases, for example, adding links to bookmarks in Word documents, adding links to slides within PowerPoint presentations, inserting a link to cell (or a range of cells) in Excel spreadsheets, etc. Therefore, to handle the hyperlinks in the document automation process, please visit this article.

Add watermarks to password protected documents in .NET

GroupDocs.Watermark already supports adding watermarks to the password protected documents, however, we have further improved and simplified the usage of this feature. Please visit this article to get an insight.

 
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.NET code example: Build your full text search solution in C#

Full text search is basically a more advanced way to search a text/query over a collection of documents in a computer. This approach quickly finds all instances of a term and it works by using text indexes. One of the examples of full text search implementation is in Word processors and text editors. It helps you find a phrase or word anywhere in the document. Read more details here.

.NET code example: Create document viewer in ASP.NET Core MVC for 140+ file formats

The online document viewers have become popular after the grown usage of digital documents, especially in the content management systems. The reason behind this popularity is you can view a variety of document formats without purchasing or installing dedicated software programs. Read the article here to know how to create a universal document viewer application.

Case study: How to remove watermarks from PDF documents

If you are looking to create an application to delete watermark from a PDF document. This article is a good learning source for the C# programming developers.

.NET code example: Add arrow annotation in a PDF file using C#

If you are given a document (e.g. PDF, Word, Presentation) and asked to brief the sales achieved in 2018. What will you do? Read this article to get the solution for such cases.

 
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Do you have ideas for what you’d like to see us do in the coming months or have any questions for us? Reply to our newsletter or share your thoughts via the forums. We’ll be happy to hear!

 
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Product Releases and Updates

GroupDocs.Total for .NET – The latest versions of GroupDocs .NET APIs packaged into one product suite.

GroupDocs.Total for Java – The latest versions of GroupDocs Java APIs packaged into one product suite.

Check out for more releases during last month

 
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