Text recognition (OCR) reads the text in scanned documents and photos and adds an invisible text layer to the PDF: you can then search, select and copy the text. The document looks exactly the same. English, French, Spanish, Arabic and more are supported.
How to make a PDF searchable with OCR
Select your file
Click the button or drag and drop your file into the box.
Choose your options
Adjust the settings if needed — the defaults work for most files.
Download the result
Your new file is created instantly in your browser. Click Download.
Frequently asked questions
Why is the first use slower?
The first time, your browser downloads the recognition model for the chosen language (a few MB). It is then kept in cache and your files are still processed on your device.
Are my files safe?
Yes. With Helpdf, your files stay on your device. They are never sent to our servers, nobody else can see them and nothing is stored.
Is Helpdf free?
Yes, every tool is completely free with no sign-up and no watermark. The site is funded by advertising.
Does it work on phone?
Yes. Helpdf works in any modern browser on Android, iPhone, iPad, Windows, Mac and Linux. Very large files may be slower on older phones.