Extract Text from PDF (OCR) — Online
Recognize text in a PDF (including scanned pages) using Tesseract OCR — Russian and English.
OCR (optical character recognition) for a PDF is what you need when a document is really just a set of images rather than text — a scanned contract, a page from a book, a photographed certificate. In that kind of PDF you can't select or copy text, or find it with search, because there's no text layer inside the file at all.
To recognize text in a PDF, upload your file above, choose the result format, and download the finished file. Each page is rendered to an image, then recognized by the Tesseract OCR engine in Russian and English. Processing happens entirely on the server, and the source file is deleted right after conversion.
Two result formats are available. TXT is the plain extracted text with no formatting — handy for copying, searching, or further processing. PDF (with a text layer) is the same document you uploaded, but with an invisible layer of recognized text over the page images: it looks like the original, but the text can be selected, copied, and found with Ctrl+F. Recognition quality depends on how clear the scan is — handwriting, heavily blurred, or rotated pages recognize worse than crisp printed text. Maximum file size is 25 MB.