OCR PDF
Run OCR on scanned PDF documents to make text searchable and selectable.
Drop scanned PDFs or images here
PDF · JPG · PNG · WEBP · TIFF · BMP — up to 30 files at once
Languages
Choose the main language in your scan. Add a second only for bilingual documents (for example English + Arabic). Maximum two languages.
Only English is installed on this server. Other languages appear in the list but need Tesseract language packs — run scripts/install-tesseract-langs.ps1 locally or redeploy the VPS.
OCR options
How to use OCR PDF?
- Step 1: Upload or add a scanned or image-based PDF.
- Step 2: Select the document language before starting OCR.
- Step 3: Click Run OCR and wait while RashPDF prepares a searchable PDF with selectable text.
- Step 4: Review the result, then download or continue with another PDF tool.
- Makes scanned pages searchable with Ctrl+F.
- Lets users copy text from documents that were previously only images.
- Improves accessibility for archived paper documents.
Frequently Asked Questions
What does OCR do to a PDF?
OCR converts scanned image-based PDFs into searchable, selectable text documents without changing their visual appearance.
How do I run OCR on a PDF?
Upload your scanned PDF, select the document language, and click Run OCR. Download the searchable PDF once processing completes.
Which languages are supported?
Over 30 languages including English, Arabic, Urdu, Hindi, French, Spanish, and German.
Will OCR change how my document looks?
No. The visual appearance stays exactly the same. OCR only adds an invisible text layer.
Does OCR work on handwritten text?
OCR works best on printed text. Handwriting recognition accuracy is lower and results may vary.
Is OCR free?
Yes. The OCR tool is completely free with no sign-up required.
Who is OCR PDF useful for?
OCR PDF is useful for researchers searching scans, students digitizing notes, and offices archiving paper records. It is built for practical document work where you need a clean result quickly without learning a complicated desktop application.
What should I prepare before using OCR PDF?
Prepare a scanned or image-based PDF and make sure it opens correctly before upload. If the file contains private, financial, legal, or client information, use the correct version and check the final output carefully before sending it to anyone else.
Which settings matter most in OCR PDF?
The most important setting is to select the document language before starting OCR. A quick review before processing usually prevents mistakes such as wrong page order, missed ranges, low image quality, or using the wrong output option.
Will OCR PDF change my original file?
No. RashPDF creates a searchable PDF with selectable text as a new result. Your original file stays on your device unchanged unless you later choose to replace it manually with the downloaded output.
How do I get the best result from OCR PDF?
Choose the correct language and use clear scans with straight, high-contrast text. The PDF should look the same visually; OCR adds a text layer and accuracy depends on scan clarity. For important documents, open the downloaded result once before submitting, printing, archiving, or forwarding it.
Can I use the output with other RashPDF tools?
Yes. After using OCR PDF, you can convert the searchable PDF to Word, compress it, or merge it with other records. This conversion may use the RashPDF conversion service for advanced processing, and the result is returned to your browser when it is ready.
How OCR Works on PDF Files
A scanned document is essentially a photograph. Each page is an image, not a text file. You cannot search for words in it, select and copy text from it, or use it with screen readers. This is a significant limitation for any document that needs to be referenced, cited, shared, or processed. OCR solves this by reading the image and converting the recognized characters into real, searchable, selectable text embedded within the PDF.
Our OCR PDF tool applies optical character recognition to every page of your uploaded scanned document. After processing, the file looks identical to the original visually, but now contains a full text layer underneath the image. You can search using Ctrl+F, select and copy any passage, use the document with assistive technology, and run text-based analysis on the content.
The tool supports more than 30 languages including English, Arabic, Urdu, Hindi, French, Spanish, German, Turkish, and many others. Before running OCR, select the primary language of your document for the most accurate character recognition. When documents contain mixed languages, select the dominant language.
OCR works best on documents with clear, well-printed text at a reasonable resolution. Handwritten content has lower recognition accuracy and may produce mixed results. Very low resolution scans or images with heavy noise may also affect accuracy.
The tool runs in your browser and does not store your documents. Scanned files often contain sensitive personal, legal, or financial content, and keeping them local to your device is an important privacy consideration.
After applying OCR, you can combine the resulting searchable PDF with other tools. Use the Edit PDF tool to annotate or correct recognized text. Use the PDF to Word tool to convert the now-searchable content into an editable document. The OCR step unlocks the full potential of all other PDF tools for documents that were previously scanned image files.
Step-by-step guide
Run OCR on a PDF to Make Scans Searchable