ThinkScan: PDF Scanner Editor

ThinkScan is a fast, easy PDF editor and document scanner for your phone. Fix a typo in an invoice, fill and sign a form, scan paper documents, or merge and compress PDFs, all in one app. Your PDFs are processed on your device and are never uploaded. ✏️ EDIT PDF TEXT • Tap any line to change it; the edit keeps the document's own font where possible • Works with Hindi, English and mixed text • Add new text, whiteout, highlight, underline and strikethrough • Draw freehand and add shapes, images, stamps and watermarks • Undo and redo, with autosave so you never lose work ✍️ SIGN PDF DOCUMENTS • Draw your signature with a finger or stylus • Save it once and reuse it on any document • Add a signature from a photo 📷 PDF SCANNER & CONVERTER • Scan paper documents into clean PDFs with automatic edge detection • Image to PDF: turn photos into a PDF • PDF to image: save pages as JPG or PNG 🧰 ALL THE PDF TOOLS YOU NEED • Merge PDF: combine several files in any order • Split PDF by page ranges • Compress PDF to share on WhatsApp and email • Rotate, crop, reorder, delete and insert pages • Add page numbers and watermarks • Password-protect a PDF 📁 ORGANISE YOUR DOCUMENTS • My documents with folders, pinned files and favourites • Choose where new PDFs are saved 🔒 PRIVATE BY DESIGN • Reading, editing and converting happen on your device • Your original file is never changed; ThinkScan always saves a new copy • No sign-up, no account and no cloud upload ⭐ THINKSCAN PRO Every core feature is free. Pro removes ads and unlocks: • Merge more than 3 PDFs and split into more than 5 files • High compression for the smallest files • Scans and image PDFs with more than 10 pages • HD image export at 300 dpi • Unlimited saved signatures and folders Choose a one-time lifetime purchase or a yearly plan. Works best with standard PDFs. Scanned or very complex PDFs may have limited text editing.