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This article explains how To detect document file type, size and calculate pages count when annotate documents or images with GroupDocs.Comparison....document file type (PDF, Word document, Excel spreadsheet, PowerPoint...
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Add text and image watermarks To PPT/PPTX Presentations. Apply watermarks using the online watermark application or using .NET and Java APIs....…) PDF File Watermarking Word Document Watermarking Excel Spreadsheet...
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This article explains how To add metadata signatures To Presentation document with GroupDocs.Signature...You are welcome to eSign PDF, Word, Excel, PowerPoint documents...
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