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  1. 使用 C# .NET 在 Word、Excel、PDF、ZIP 文档格式中搜索文本

    GroupDocs.Search 是一个功能强大的全文搜索 API，它允许您在应用程序中搜索 70 多种文档格式。...档可以是任何格式，例如 Word(Doc、Docx) 、PDF、HTML、EPUB、电子表格(XLS、XLSX) 、演示文稿(PPT、PPTX)...文档 # 以下步骤说明如何在多个文档(Word、Excel、PDF 和其他文档格式) 中搜索单词或短语。 创建新索引 ：首先...

    blog.groupdocs.com/zh/search/search-text-in-wor...
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  2. Get Possible Conversions | GroupDocs

    Query GroupDocs.Conversion for Python via .NET for the set of target formats a given source supports — library-wide, by extension, or for the document currently loaded — via get_all_possible_conversions, get_possible_conversions_by_extension, and get_possible_conversions....'ps', 'pcl', 'svg', 'svgz', 'pdf', 'ppt', 'pps', 'pptx', 'ppsx'...'xps', 'tex', 'ps', 'pcl', 'pdf', 'xls', 'xlsx', 'xlsm', 'xlsb'...

    docs.groupdocs.com/conversion/python-net/develo...
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  3. Load document from stream | GroupDocs

    There might be cases when the document is presented only as a stream (without a copy on the local disk). To avoid the overhead of saving documents to the disk, GroupDocs.Parser enables to extract data from streams directly. The following example shows how to load the document from the stream: // Create the stream try (InputStream stream = new FileInputStream(Constants.SamplePdf)) { // Create an instance of Parser class with the stream try (Parser parser = new Parser(stream)) { // Extract a text into the reader try (TextReader reader = parser....welcome to extract data from PDF, DOC, DOCX, PPT, PPTX, XLS, XLSX...prompt, please hold on... An error occurred while retrieving the...

    docs.groupdocs.com/parser/java/load-document-fr...
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  4. Verifying documents with exception handling | G...

     This article explains how to handle specific exceptions when verifying document electronic signatures with GroupDocs.Signature API....this page provides different error messages due to validation issues...above method with catching type error. This example shows how to handle...

    docs.groupdocs.com/signature/net/verifying-docu...
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  5. Extracting Common Image Information | GroupDocs

    For all supported image formats the GroupDocs.Metadata API allows extracting common image properties such as width and height, MIME type, byte order, etc. Please see the code snippet below for more information on the feature. Load an image Extract the root metadata package Use the FileType property to obtain file format information AdvancedUsage.ManagingMetadataForSpecificFormats.Image.ImageReadFileFormatProperties using (Metadata metadata = new Metadata(Constants.InputPng)) { var root = metadata.GetRootPackage(); Console.WriteLine(root.FileType.FileFormat); Console.WriteLine(root.FileType.ByteOrder); Console.WriteLine(root.FileType.MimeType); Console.WriteLine(root.FileType.Extension); Console.WriteLine(root.FileType.Width); Console.WriteLine(root.FileType.Height); } More resources GitHub examples You may easily run the code above and see the feature in action in our GitHub examples:...to view and edit metadata of PDF, DOC, DOCX, PPT, PPTX, XLS, XLSX...prompt, please hold on... An error occurred while retrieving the...

    docs.groupdocs.com/metadata/net/extracting-comm...
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  6. Supported Document Formats | GroupDocs

    It supports DOCX, DOCM, DOC, DOT, DOTM, XLS, XLSX, Pdf, PPT, JPG, PNG, HTML, EML and many more....Adobe Portable Document Format (PDF) OpenDocument Presentation OpenDocument...prompt, please hold on... An error occurred while retrieving the...

    docs.groupdocs.com/signature/java/supported-doc...
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  7. Numeric range search | GroupDocs

    This article gives the knowledge about numeric range search which allows you to search in documents any integer numbers in the range from 0 to 9223372036854775807 (Int64.MaxValue) using Java search API....welcome to search over your PDF, DOC, DOCX, PPT, PPTX, XLS, XLSX...prompt, please hold on... An error occurred while retrieving the...

    docs.groupdocs.com/search/java/numeric-range-se...
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  8. eSign Document with QR Code Signature | GroupDocs

    This article explains how to sign documents with electronic signature as QR code on document page with GroupDocs.Signature for Python via .NET API....below demonstrates how to sign a PDF document with the QR code signature...signature . Signature ( "./sample.pdf" ) as sign : # Create QR code...

    docs.groupdocs.com/signature/python-net/esign-d...
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  9. Get file info | GroupDocs

    This article explains how to detect document file type, size and calculate pages count with GroupDocs.Comparison....represents the document file type (PDF, Word document, Excel spreadsheet...prompt, please hold on... An error occurred while retrieving the...

    docs.groupdocs.com/comparison/python-net/get-fi...
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  10. Save attachments | GroupDocs

    Save attachments and embedded files from Pdf, Outlook data file or email...Outlook data files, archives, and PDF documents. C# using System.IO...prompt, please hold on... An error occurred while retrieving the...

    docs.groupdocs.com/viewer/net/how-to-extract-an...
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