pdf-annotations

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indaos / PDFCoriumKit

Cross‑platform PDF tooling built on the open‑source PDFium engine

android java swift pdf ios web webassembly pdf-viewer pdf-library document-processing pdfium form-filling pdf-renderer pdf-editing pdf-annotations acroforms

Updated Jan 19, 2026
C

SyncfusionExamples / add-or-remove-pdf-stamp-csharp

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This repository demonstrates how to add or remove stamp annotations in PDF documents using C# and the Syncfusion .NET PDF Library. Learn to apply standard approval stamps,embed custom image stamps like logos/signatures,and remove existing stamps programmatically-ideal for automating document workflows,branding, status tracking in .NET applications.

stamp pdf-library csharp-library pdf-annotations pdf-stamp

Updated Nov 17, 2025
C#

youichi-uda / droidpdf

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Kotlin-native PDF library for Android. Create, edit, merge, split, annotate, encrypt PDFs. Affordable iText7 alternative — free for personal use, $99/year for commercial.

android kotlin pdf android-library acroform pdf-generation pdf-manipulation pdf-library pdf-merger pdf-encryption pdf-annotations itext-alternative iso-32000

Updated Mar 25, 2026
Kotlin

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