Why scanned PDFs are harder to rename
A scanned PDF often contains page images instead of selectable text. To rename these files by invoice number, date, or name, an OCR step must first recognize the text in the image.
Scanned documents
Rename Scanned PDF Files
Scanned PDFs are image-based, so a browser text extractor may not see invoice numbers, dates, or names until OCR turns the image into searchable text.
OCR needed
Review required
Best for clear scans
How to prepare scanned PDFs for better OCR
- Use high-resolution scans with straight pages.
- Avoid shadows, folds, and heavy compression.
- Keep one document type per batch when possible.
- Review OCR output before using it for file names.
Fields OCR can help extract
OCR can help find invoice numbers, dates, totals, customer names, account numbers, and document titles, but accuracy varies by scan quality and layout.
What the free tool supports now
The current browser tool supports text-based PDFs first. If it finds no text, it warns you before download. This keeps the first version free, fast, and privacy-friendly.
Test a text-based PDF first
Upload a selectable PDF and see how the preview workflow works.