In this article
  1. What is OCR?
  2. What do you gain?
  3. How to use it
  4. How to improve accuracy
  5. A note on Arabic and other scripts
  6. From paper to searchable file
  7. Bottom line

You have an archive of scanned invoices, contracts and certificates, and you want to find one month’s bill or a contract number. You open the file, hit search… nothing. That’s because a scanner doesn’t save “text” — it saves a picture of the page. This is where OCR comes in.

What is OCR?

OCR stands for Optical Character Recognition. The software analyzes the shapes of characters in an image and converts them into real text you can select, copy and search.

What do you gain?

How to use it

  1. Open the OCR PDF tool and select your scanned file.
  2. Choose the document language. This is the most important step: the engine looks for the letter shapes of a specific language.
  3. Wait for processing; many pages take time because the work happens on your device.
  4. Copy the text or download the file with its new text layer.

How to improve accuracy

FactorTip
Scan resolution300 DPI suits most documents
LightingAvoid shadows and glare when shooting with a phone
AlignmentStraighten skewed or upside-down pages first
ContrastDark text on a light background works best
TypefaceHandwriting and decorative fonts are much harder than print

A note on Arabic and other scripts

Arabic is harder for OCR than Latin script because letters connect and change shape depending on their position, plus diacritics and dots. Accuracy is highest with clear printed fonts, and names and numbers always deserve a quick proofread.

From paper to searchable file

If your documents are still on paper, capture them with Scan to PDF, which crops edges and boosts contrast, then run OCR. For sensitive documents, remember that processing happens in your browser, so your files never leave your device.

Bottom line

OCR turns silent images into living text. Pick the right language, scan at good quality and proofread the result — you’ll save hours of searching and retyping.