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Source channel @githubtrending · Post #15228 · Oct 16
#csharp#pdf#pdf_converter#pdf_document_processor#pdf_generation PDFPatcher is a free and open-source tool that helps you manage PDF files. It allows you to edit PDF metadata, bookmarks, and page layouts. You can also merge, split, and rotate PDF pages. Additionally, it supports converting PDF pages to images and extracting specific pages. The software is free to use and does not have ads or privacy concerns. It encourages users to do a good deed after using it, which is part of its unique "良心授权" (conscience license) agreement. This tool is beneficial for users who need to manipulate PDFs without spending money on expensive software. https://github.com/wmjordan/PDFPatcher
Search: #limestone
@amazingeo · Post #615 · 02/05/2026, 08:31 PM
🌍 The world’s largest karst region is in southern China, where vast limestone hills, towers, and deep caves house rare species found nowhere else on Earth, including blind fish and giant salamanders. ✨ #karst⚡#caves⚡#limestone⚡#geography⚡#nature⚡#earth 👉subscribe Amazing Geography 👉more Channels
@amazingeo · Post #355 · 10/10/2025, 03:31 PM
🌍 The Pine Island karst in Madagascar features limestone pinnacles called "Tsingy," so sharp and dense that large areas are nearly impassable, hiding unique plants and animals. ✨ #karst⚡#caves⚡#limestone⚡#geography⚡#nature⚡#earth 👉subscribe Amazing Geography 👉more Channels