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Free offline PDF tools: merge, split, Word to PDF, watermark, protect, sign.
PDF Toolbox handles all your everyday PDF tasks in a single app. All file processing happens on your device — your files never leave it. FEATURES ✏️ Add text/drawings to PDF — Open a PDF and add text, draw with a pen and highlighter, or cover unwanted parts with the eraser. All pages on one continuous scrolling screen. 🗜️ Compress — Shrink a PDF's file size by re-compressing the images inside; text stays sharp. 📎 Merge — Combine multiple PDFs into one file in any order you like; drag to reorder. ✂️ Split — Split a PDF into one file per page, or into the page ranges you define (e.g. 1-3, 4-7). 📑 Organize pages — See pages as thumbnails; drag to reorder, rotate, and delete the ones you don't need. 🖼️ Images to PDF — Turn photos and images into a single PDF, at A4 or original size. 📄 Word to PDF — Convert .docx documents to PDF offline; text, headings, images and simple tables are preserved. An optional "Preserve page count" mode follows Word's own pagination. 📝 PDF to Word — Turn your PDF into an editable .docx document; text, headings and images are carried over. 🎞️ PowerPoint to PDF — Convert .pptx decks; each slide becomes one PDF page with text and images in place. 📁 My Files — See every file you created with the app in one place; open, share or delete them. 📷 PDF to images — Export pages as PNG at the quality you choose. 💧 Watermark — Stamp diagonal or straight text watermarks on every page; size and opacity are adjustable. 🔒 Password protection — Lock your PDF with a password (AES), or remove protection from a file whose password you know. ✍️ Sign — Draw your signature with your finger, place it anywhere on any page and resize it. Results are saved to your Downloads folder and can be shared with one tap. The app is free and ad-supported. Your files are never uploaded to any server; all processing happens on your device.