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  1. Password Protect PDF Files in C# | Lock Unlock PDF

    Let's learn how to lock PDF files with password protection using C#. Change the existing password or remove it to unlock the PDF files using .NET API....we discussed adding text and image watermarks to the documents...

    blog.groupdocs.com/merger/lock-unlock-pdf-files...
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  2. Protect Your Documents with Watermarks in Group...

    One of the most requested and hence actively developed features in GroupDocs.Viewer for .NET is watermarking. Watermarking allows you to protect documents that you display on the web from screen-grabbing. In GroupDocs.Viewer for .NET watermarks are implemented as customizable text that can be added over a displayed document, overlapping its content. For the first time the ability to add watermarks was implemented in GroupDocs.Viewer for .NET version 2.0. In its first implementation, the feature had a number of restrictions....watermarks could be used only in the image-based rendering mode and the...

    blog.groupdocs.com/viewer/protect-your-document...
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  3. eSign document with Barcode signature | Documen...

    This article explains how to add Barcode signature on document page with various options like barcode type, barcode text, positioning, alignment and other visual settings with GroupDocs.Signature...Generally speaking, barcode is an image of a rectangular form that consists...

    docs.groupdocs.com/signature/net/esign-document...
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  4. Export annotations and retrieve document pages ...

    post. Tagged with net, annotator, api, Image....while annotating documents or images on .NET platform. Other highlights...OpenOffice, CAD, PDF, 3D and images. Location Australia Joined...

    dev.to/groupdocs/export-annotations-and-retriev...
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  5. How to Create GroupDocs Viewer Plugin for Conta...

    This article explains the basics of creating a plugin for the Contao CMS using the Contao Viewer plugin as an example. You can download the completed plugin from Contao. Requirements Contao CMS PHP 5.3 JavaScript PreparationTo create a GroupDocs Viewer plugin for Contao CMS: Install Contao CMS. The installation of this CMS is a simple. Allow GroupDocs to appear go to Admin > Setting > Security settings > Allowed HTML tags and just add at the end....'tl\_class'=>'w50') ), /\* 'image' => array ( 'label' => &$GL...&$GLOBALS\['TL\_LANG'\]\['tl\_gdv'\]\['image'\], 'inputType' => 'fileTree'...

    blog.groupdocs.com/viewer/how-to-create-groupdo...
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  6. Create custom format handler | Documentation

    This article shows how to implement one or several interfaces for the document's features and required redaction....PDF with page images) Required for raster image format redactions...

    docs.groupdocs.com/redaction/net/create-custom-...
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  7. Password Protect Excel Files in C# | Lock Unloc...

    Let's learn how to password protect Excel spreadsheet files using C#. Change the existing password or remove it to unlock the XLS/XLSX files using .NET API....we discussed adding text and image watermarks to the Excel spreadsheets...

    blog.groupdocs.com/merger/lock-unlock-excel-fil...
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  8. Assemble Documents and Acquire Online Signature...

    The Web 2.0 era has brought consumers and organizations closer. Consumers are active in community forums, blogs or other information-sharing platforms to discuss their tastes and preferences. Closer relationships with their customers has helped organizations understand buyer’s behavior and devise new products faster. Growing Internet penetration ensures that organizations who share, collaborate and reach out to their customers have a competitive edge. Managing documents effectively is important for businesses to increase the transaction cycle....can be signed by dropping an image of a handwritten signature,...

    blog.groupdocs.com/signature/assemble-documents...
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  9. Edit Presentations in Java | PPT/PPTX Editing

    Editing PowerPoint presentations is explained with Java example to edit PPT, PPTX, ODP files within your application using presentation editing API....presentation will look like the image below. In this edited presentation...

    blog.groupdocs.com/editor/edit-ppt-pptx-present...
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  10. Evaluation Limitations and Licensing | Document...

    Note GroupDocs.Metadata also works without the license in trial mode with certain limitations Evaluation version limitations You can easily download GroupDocs.Metadata for evaluation. The evaluation download is the same as the purchased download. The evaluation version simply becomes licensed when you add a few lines of code to apply the license. You will face following limitations while using the API without the license. API Limitations Document properties (Pdf, Word, Excel, PowerPoint, Visio, etc) Only first 5 properties can be read XMP API Only first 2 XMP schemes can be read EXIF API GPS IFD and Image thumbnail are unavailable Only first 5 properties can be read IPTC API Only first 5 properties can be read Id3v2, Lyrics3, APEv2 tags Only first 5 properties can be read QuickTime atoms Only first 5 atoms can be read File open Open maximum 15 files, otherwise, API throws exception File save Not supported in trial mode Licensing The license file contains details such as the product name, number of developers it is licensed to, subscription expiry date and so on....be read EXIF API GPS IFD and image thumbnail are unavailable Only...

    docs.groupdocs.com/metadata/java/evaluation-lim...
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