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watermarking pdf

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  1. Python 平铺水印：7 个保护文档和图像的示例

    通过 7 个实用示例精通 Python 平铺水印。学习添加、创建和自定义水印以实现文档安全，删除水印，并使用 GroupDocs.Watermark API 进行企业内容保护来保护文件。...什么是水印以及为什么需要它们 开始之前：简易安装 安装 Watermark 工具（超级简单！） 7 种专业水印模板：从基础保护到最高安全...，它们更难被移除。 开始之前：简易安装 # 安装 Watermark 工具（超级简单！） # 把它想象成下载一个应用。我们需要一个名为...

    blog.groupdocs.com/zh/watermark/tiling-watermar...
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  2. Character types | GroupDocs

    This page contains descriptions of all character types. Character types differ in how characters of these types are indexed....Watermark Product Solution GroupDocs...welcome to search over your PDF, DOC, DOCX, PPT, PPTX, XLS, XLSX...

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  3. Deleting Image signatures - advanced | GroupDocs

    This article shows how to delete Image electronic signatures different ways with GroupDocs.Signature API....Watermark Product Solution GroupDocs...use the online app. To sign PDF, Word, Excel, PowerPoint, and...

    docs.groupdocs.com/signature/net/deleting-image...
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  4. Deleting Barcode signatures - advanced | GroupDocs

    This article shows how to delete Barcode electronic signatures different ways with GroupDocs.Signature API....Watermark Product Solution GroupDocs...use the online app. To sign PDF, Word, Excel, PowerPoint, and...

    docs.groupdocs.com/signature/net/deleting-barco...
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  5. Sign documents with encrypted metadata text | G...

    This article explains how to create encrypted Metadata electronic signature with GroupDocs.Signature API...Watermark Product Solution GroupDocs...Apps. You are welcome to eSign PDF, Word, Excel, PowerPoint documents...

    docs.groupdocs.com/signature/java/sign-document...
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  6. Working with OpenType fonts | GroupDocs

    OpenType is a format for scalable computer fonts. It was built on its predecessor TrueType, retaining TrueType’s basic structure and adding many intricate data structures for prescribing typographic behavior. Note Please find more information on the OpenType format here: https://en.wikipedia.org/wiki/OpenType. Reading OpenType metadata The GroupDocs.Metadata API supports extracting format-specific information from OpenType font files. The following are the steps to read the header of an OpenType file. Load an OpenType font file Get the root metadata package Extract the native metadata package using the OpenTypeRootPackage....Watermark Product Solution GroupDocs...to view and edit metadata of PDF, DOC, DOCX, PPT, PPTX, XLS, XLSX...

    docs.groupdocs.com/metadata/java/working-with-o...
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  7. Save signed images with various output types | ...

    This article explains how to save images with various image format types....Watermark Product Solution GroupDocs...Apps. You are welcome to eSign PDF, Word, Excel, PowerPoint documents...

    docs.groupdocs.com/signature/java/save-signed-i...
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  8. Generate document pages preview | GroupDocs

    This topic explains how to get document pages preview as images with various options by GroupDocs.Signature API....Watermark Product Solution GroupDocs...signature = new Signature ( "sample.pdf" )) { // create preview options...

    docs.groupdocs.com/signature/net/generate-docum...
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  9. GroupDocs Blog

    GroupDocs Blog - GroupDocs Blog | Document Automation Solutions for .NET & Java Developers...Watermark is coming soon to Java platform...for adding text and image watermark to the popular document formats...

    blog.groupdocs.com/groupdocs.blog/page/64/
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  10. Password Protect Excel Files in Java | Lock Unl...

    Let's learn how to password protect Excel spreadsheet files using Java. Change the existing password or remove it to unlock the XLS/XLSX files using Java API....about adding text and image watermarks to the Excel spreadsheets...Unlock Excel Files Online Watermark Excel Files using Java Protect/Unprotect...

    blog.groupdocs.com/merger/lock-unlock-excel-fil...
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