MythosPDF

Edit a Tiny Scanner scan without converting it

Scanned something with Tiny Scanner and spotted a mistake? Click the words on the scan and type the fix. Camera foreshortening is fitted as a horizontal scale on each line, and the paper grain around the word is kept, so the new word sits in the photo like the old one.

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How to do it

  1. 1.Drop your scanned PDF into MythosPDF. The words on each page become clickable boxes.
  2. 2.Click the first word, Shift+click to extend along the line, then double click or press Enter and type the new text.
  3. 3.Press Enter to apply the change, then Export PDF.

How Tiny Scanner scans

  • • Phone scanners photograph the page, straighten and crop it, and save the image into a PDF.
  • • Photos carry perspective, uneven light and JPEG compression, and some apps add a hidden OCR text layer.
  • • Camera foreshortening is fitted as a horizontal scale on each line, and the paper grain around the word is kept, so the new word sits in the photo like the old one.

How MythosPDF edits a scan directly

  • • Words are found from the ink on the page with OCR, not from a scanner's hidden text layer, which often drifts.
  • • The font of the line is identified from the letter shapes, together with size, stroke weight and slant of the photo.
  • • Only the pixels of the words you change are redrawn, in the page's own ink tone, with the surrounding paper grain kept.
  • • The rest of the page image stays byte for byte the same, and any hidden OCR layer is updated so search finds the new words.
  • • Each edit is read back by OCR and checked for ghosts of the old ink before you see it.

Good to know

  • • Changes replace words within one line. A longer replacement moves the rest of that line along; adding new lines or deleting words is not available on scans.
  • • Handwriting, and print in a font that cannot be identified, cannot be redrawn, so the edit is refused.
  • • If the new text would touch a stamp, signature or line, MythosPDF refuses instead of smudging it.
  • • Text is read in English, so other scripts are not editable on scans yet.

Questions people ask

+Do I need to convert the scan to Word first?

No. MythosPDF edits the scanned page itself. There is no conversion, so the page keeps its look.

+What if a word cannot be changed invisibly?

You get the exact reason, such as a stamp in the way or a font that could not be identified, instead of a smudged page.

Edits in a Tiny Scanner scan
Scanned with Tiny Scanner
Tiny Scanner scans

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