Quick Summary: OCR PDF
Convert PDF scans to searchable text and PDFs. Extract text from scans Siliph's OCR PDF is a free in-browser PDF utility featuring a built-in AI assistant to optimize formatting, suggest settings, and answer compliance questions.
What does OCR PDF do?
OCR PDF recognizes text in scanned pages and adds a searchable text layer so you can copy, find, and convert content instead of treating each page as a flat image.
When to use OCR PDF
- Scanned PDFs where you cannot select or search text
- Archiving paper records as searchable digital files
- Preparing scans for Word or Excel conversion
Paper archives, faxed contracts, and phone photos of whiteboards produce image-only PDFs where highlight and search fail. OCR generates hidden text aligned with visible glyphs, unlocking downstream Word export and keyword splitting.
Siliph OCR PDF runs recognition in the browser-backed engine with encrypted uploads, supporting common languages on mixed documents. Processing time scales with page count, but you avoid mailing discs to a desktop suite.
Deskew and grayscale preprocessing improve accuracy on crooked, shadowed scans—run those tools first on difficult captures. OCR quality on handwriting remains limited; typed prints and laser output work best.
Files purge within two hours on the free plan, and OCR requires no signup to test on a short sample. After OCR, PDF to Word or PDF to Excel conversions preserve far more structure than from raw images.
For Indian government forms with Devanagari or regional scripts, verify sample output against portal requirements before bulk processing entire applications.
Siliph scan tools run OCR, deskew, and grayscale cleanup in the browser, turning camera captures into searchable PDFs without Acrobat. Scans are encrypted end to end, removed after your session, and available instantly with no signup.
How OCR PDF works
This interactive preview demonstrates the interface layout and processing controls you will find in our workspace above. Everything is designed to be fast, responsive, and completely secure.
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How to OCR a scanned PDF — step by step
Follow these detailed steps to complete your task securely in the cloud.
Upload flat scans
Select non-selectable scan images or skewed PDFs.
Select OCR language
Specify languages (e.g. English, French, German) to enable parsing.
Rebuild text layer
The engine runs scan deskewing and overlays selectable fonts.
Download PDF
Get your clean, searchable PDF or plain TXT document output.
Key Features & Benefits of OCR PDF
Discover why thousands of professionals trust Siliph for fast, high-quality document editing and conversion.
AI Tool Assistant
Built-in AI suggests optimal settings and answers questions for every PDF tool.
Lossless Optimization
Downsample high-resolution scanner images while maintaining vector text readability.
Searchable OCR Text
Unlock flat image scans by overlaying searchable and copyable text layers.
Auto Scan Clean-up
Deskew and rotate pages automatically to align horizontal lines.
Frequently asked questions about OCR PDF
OCR currently recognizes English, Spanish, French, German, Chinese (Simplified) and Arabic, with more languages on the way.
OCR (Optical Character Recognition) parses scanned paper documents or flat images inside a PDF and overlays an invisible layer of selectable text on top. This makes scanned text searchable, copiable, and editable.
You can output a searchable PDF (which keeps the page layout intact but makes the text selectable) or extract the parsed text directly into a plain TXT file.
Yes. Every Siliph tool includes AI Tool Assistant. Describe your goal — for example SSC photo under 50KB, merge documents in order, or redact Aadhaar numbers — and AI recommends the best settings. You can also ask follow-up questions before processing.
Yes. Siliph lets you use OCR PDF for free. The free plan includes 3 tasks per hour with files up to 50 MB or 50 pages. Paid plans remove these limits and add priority processing.
Yes. Files are transferred over an encrypted HTTPS connection, processed automatically without human access, and deleted from our servers within 2 hours on the free plan.
Embed this tool on your site
Add OCR PDF to your blog or website for free. The embed includes a dofollow backlink to Siliph when you use the attribution snippet below — that helps both sites rank.
Embed (iframe)
<iframe src="https://siliph.com/ocr-pdf?embed=1" title="OCR PDF — Siliph" width="100%" height="620" style="border:0;border-radius:12px;max-width:900px;" loading="lazy" allow="clipboard-write"></iframe> <p style="font-size:12px;color:#666;margin-top:8px;"><a href="https://siliph.com/ocr-pdf" title="OCR PDF — Siliph" rel="dofollow">OCR PDF</a> powered by <a href="https://siliph.com/" title="Siliph — Free PDF Tools" rel="dofollow">Siliph</a></p>
Link for blog posts / tool lists
<p style="font-size:12px;color:#666;margin-top:8px;"><a href="https://siliph.com/ocr-pdf" title="OCR PDF — Siliph" rel="dofollow">OCR PDF</a> powered by <a href="https://siliph.com/" title="Siliph — Free PDF Tools" rel="dofollow">Siliph</a></p>
Direct link: https://siliph.com/ocr-pdf
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