Make Scanned PDF Searchable - Free OCR Tool

Make scanned PDF searchable: who it helps and how

A scan is a photograph of paper. You can read it, but your computer cannot: search finds nothing, you cannot paste a quote, and the file never shows up when you search your folders. Adding a text layer through OCR fixes all three without changing what the pages look like.

Real jobs this tool handles

• Students: turn photocopied book chapters into PDFs where you can jump to a term and copy citations into notes.
• Office and HR teams: make signed contracts, payslips and personnel forms findable in a shared archive by name or ID number.
• Freelancers and accountants: OCR a stack of supplier invoices so amounts and invoice numbers can be searched at tax time.
• Real estate agents: search lease agreements and property deeds for a clause instead of scrolling through dozens of pages.
• Teachers: export a scanned worksheet to DOCX, fix a few words and print an updated version.

Getting a clean result

Scan at 200-300 dpi when you have the choice. For tiny footnotes, open Recognition settings and pick High accuracy (300 dpi); for big, clear type, Fast (150 dpi) saves time. When a document mixes two languages, tick both. Shoot phone photos from straight above with even light. After the run, the summary tells you the average confidence and how many pages were rotated or skipped, and a preview lets you copy all recognised text at once.

What it will not do

Handwritten notes are read poorly, tables in Word or TXT output turn into plain paragraphs, and the language files must be fetched once over the internet before the first run. Very long documents on a phone may need to be split into smaller page ranges to avoid running out of memory.