How to Make a Scanned PDF Searchable (OCR)
A scanned PDF is really just a picture of text — you cannot search or copy from it. OCR (Optical Character Recognition) fixes that. KOIAE's OCR PDF tool reads the text in your scan (Bengali and English) and makes it searchable and selectable.
How to OCR a scanned PDF
- Open the OCR PDF tool. Visit the KOIAE OCR PDF page.
- Upload your scanned PDF. Drag and drop the scanned document or image.
- Run OCR. Choose the language and KOIAE recognises the text.
- Download the searchable PDF. Download a PDF whose text you can now search and copy.
Tips for the best results
- Clear, high-contrast scans give the best OCR accuracy.
- KOIAE supports both Bengali and English text recognition.
- After OCR you can convert the file to Word to edit it.
Why use KOIAE OCR PDF?
KOIAE OCR PDF is completely free — there is no account to create, no watermark on your files and no daily limits for everyday use. Most processing happens right in your browser, so your documents stay private, and it works on any device from Windows and Mac to Android and iPhone.
Frequently asked questions
Does OCR support Bengali?
Yes, KOIAE OCR recognises both Bengali and English text.
What makes a good scan for OCR?
A straight, high-contrast, high-resolution scan gives the most accurate results.
Can I edit the text afterwards?
Yes — convert the searchable PDF to Word to edit the recognised text.
Related tools: PDF to Word · Extract Text · Compress PDF · All PDF tools