OCR PDF Online Free

Add a text layer to image-only PDFs so you can search, copy, and convert them.

Quick Summary: OCR PDF Online Free

Add a text layer to image-only PDFs so you can search, copy, and convert them. Siliph runs in your browser with encrypted uploads and a built-in AI assistant for portal-specific settings.

What does OCR PDF Online Free do?

Add a text layer to image-only PDFs so you can search, copy, and convert them. 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 Online Free

You need to ocr pdf online free quickly without installing apps
The file contains sensitive data and you prefer local processing

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.

Visual Guide

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.

Runs completely inside your browser

AES-256 secure encryption

Automated file clean-up within 2 hours

siliph.com/ocr-pdf

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Flat Image ScanSearchable Text Layer

Secure SSL WorkspaceLocal Browser Preview

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.

Upload flat document

Select OCR language

Specify languages (e.g. English, French, German) to enable parsing.

English (OCR)✓

Rebuild text layer

The engine runs scan deskewing and overlays selectable fonts.

Selectable OCR text layer

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

Add a text layer to image-only PDFs so you can search, copy, and convert them. Siliph is free to start — no signup required.

No. The tool runs in your browser on phone, tablet, or desktop.

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-online-free?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-online-free" 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-online-free" 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-online-free