How to Use OCR to Extract Text from a Scanned PDF
A scanned PDF is essentially a photograph of a page — the text appears visible, but it is stored as an image rather than actual characters. This means you cannot select, search, or copy the text normally.
OCR (Optical Character Recognition) solves this by analysing the image and recognising the characters, then embedding the detected text into the PDF so it becomes searchable and selectable.
When you need OCR
- A document was scanned and saved as a PDF without text recognition
- You received a PDF that looks like a scan — the cursor turns into a crosshair instead of a text cursor when you hover over words
- You want to copy a quote from a scanned report
- You need to make a document searchable by keyword
- You want to extract the text as a .txt file for further editing
How OCR works
The tool sends each page image through a character recognition engine that identifies letters, words, and formatting. The recognised text is embedded as an invisible text layer on top of the original image. The PDF looks identical, but the text is now selectable and searchable.
Step-by-step: OCR a PDF
1. Open the OCR PDF tool
Go to PDFEverything — OCR PDF.
2. Upload your scanned PDF
Drag and drop the file or click to browse.
3. Select the document language
For best accuracy, select the primary language of the document. The recognition engine uses language models to improve word accuracy.
4. Run OCR
The tool processes each page and embeds the recognised text. Processing time depends on the number of pages and your device's speed.
5. Download the searchable PDF
The result is a PDF that looks the same as the original but now contains a searchable text layer. Open it in any PDF viewer and press Ctrl+F (or Cmd+F) to search.
Tips for better OCR accuracy
- Scan quality matters: A clean, high-resolution scan (300 DPI or higher) produces significantly better results than a blurry photograph.
- Straight pages: Pages that are tilted or curved are harder to recognise accurately. Scan on a flat surface.
- Clear contrast: Dark text on a white background is easiest to recognise. Coloured or low-contrast documents may produce more errors.
After OCR: extracting the text
Once the PDF has a text layer, you can use the Extract Text tool to save all the content as a plain .txt file — useful for editing, analysis, or feeding into other applications.
OCR processing runs in your browser — your document is not uploaded to any server.