Can You Edit a Scanned PDF? Text PDFs vs. Image PDFs Explained
A scanned PDF is a photo of a page, so there's no text inside to edit, only pixels. Text PDFs (exported from Word, Google Docs, Canva, payroll or billing software) contain real text and can be edited precisely. To check, try selecting a word: if you can highlight individual letters, it's a text PDF.
Two very different kinds of PDF
A text PDF stores characters, fonts and positions. Software can read, search and change them. A scanned PDF stores an image of a page, like a photo. It may look identical, but to a computer it's a grid of pixels with no words in it.
How to tell in 10 seconds
- 1Open the PDF and try to select a single word with your cursor.
- 2If individual letters highlight, it's a text PDF and you can edit it with MythosPDF.
- 3If you can only select the whole page as a block, or nothing at all, it's a scan.
- 4Try Ctrl/Cmd+F for a word you can see. No match usually means a scan.
What about OCR?
OCR (optical character recognition) guesses the text in an image and adds an invisible text layer. That makes a scan searchable, but the visible page is still a picture. Editing it means repainting pixels, which can't meet the fidelity bar we hold ourselves to. That's why MythosPDF focuses on text PDFs, where it can guarantee your edit is exact.
Your options for a scanned document
- •Ask the sender for the original digital PDF (payroll, billing and HR tools can reexport)
- •Recreate the document from the source file if you have it
- •For small fixes on a scan, use an image editor and accept that it's a visual patch