Edit PDF Online with OCR — Free, Private, In-Browser
PDFRox is a free online PDF editor with built-in OCR (optical character recognition).
Open any PDF and edit its text, fill out forms, sign documents, add images, draw shapes,
annotate, and merge files — all without uploading anything to a server. Need to
edit text in a PDF image or a scanned PDF? Run OCR on the page or image,
and every line becomes its own editable text box.
About OCR Text Extraction
Many PDFs contain text that's actually a picture — scans, screenshots, photos of forms, image-only
exports. A standard editor can't change those words because they're not text, they're pixels. PDFRox
solves that with browser-side OCR: it reads the image, finds each line of writing, and turns it back
into editable text positioned exactly where it appeared.
Edit PDF image text without redoing the layout.
Edit scanned PDFs — replace dates, names, totals, or any wording inside the scan.
Extract text from PDF images for copy-paste, search, translation, or accessibility.
Redact sensitive words inside image-based PDFs.
Background-aware edits — each line's background color is sampled from the source image so corrections blend in seamlessly.
Why PDFRox
100% private: OCR and editing run entirely in your browser. Your files never leave your device.
Free forever: no watermarks, no page limits, no account.
Works everywhere: any modern browser on Windows, macOS, Linux, Chromebook, iPad, or Android.
Full editor: edit text, OCR scanned pages, sign, annotate, add images, draw shapes, and merge PDFs.
How to edit a scanned PDF or PDF image
Open your PDF in PDFRox (or drop the file onto this page).
Click the image or scanned page you want to edit.
Choose Extract Text to run OCR on that region.
Edit, replace, or delete any extracted line — the background blends in automatically.