Free PDF tools: merge PDFs, make scans searchable

Tools for PDF files. A scanned PDF is a stack of pictures: you can read it, but you can't search it, select a sentence or copy a table out of it, and a computer can't index it. The OCR tool reads the text on every page and adds it as an invisible layer behind the page, so the PDF looks exactly as it did but becomes searchable and copyable.

It reads printed and typed text in 22 languages, from English, German, French and Spanish to Russian, Greek, Arabic, Hindi, Chinese, Japanese and Korean, and turns sideways or upside-down pages upright. Pages that already have text can be left alone, or have an earlier OCR layer replaced.

Photos, screenshots and scanned pictures work too: JPG, PNG, TIFF (with all its pages), WebP, BMP and iPhone HEIC photos become a searchable PDF, and the recognised text also comes as a plain text file, ready to paste into an e-mail or a document.

Merge PDF puts separate papers together into the one PDF that applications, claims and tax returns ask for: PDFs with their pages as they are, photos and scans as pages (JPEGs without being compressed again), and Word, Excel or PowerPoint files laid out as they would print, in the order you choose, with a bookmark for each file and only the pages you need.

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