PDF OCR
Drop your PDF here
or
PDF files up to 100MB
Apply OCR (optical character recognition) to scanned or image-based PDFs. Recognize and extract text to make PDFs searchable and copy-friendly. Your file never leaves your device.
Your Files Stay Safe
Your files are processed right on your device. Nothing is uploaded to the internet.
Never Leaves Your Device
Your files are processed on your own computer or phone — never sent online
No Sign-up Needed
No account, no login, no email required
Automatically Cleared
After processing, your file data is instantly erased
Why pattopdf?
No Waiting
Files aren't uploaded anywhere, so processing finishes right away.
Completely Free
No limits. Use as many times as you want, forever.
Safe & Private
Your files stay on your device. Nothing is ever sent to an external server.
FAQ
What is OCR?
OCR (Optical Character Recognition) recognizes text in scanned documents or image-based PDFs and embeds it as a searchable text layer. After OCR, you can search and copy text.
What languages are supported?
Choose from Japanese + English, English only, or Japanese only. Select based on your document's content.
How long does processing take?
About 3-10 seconds per page on a typical laptop (Intel Core i5), or 2-5 seconds on high-performance machines (Apple M4). All processing happens in your browser.