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Choose PDF
Select the PDF you want to extract text from. The file is read in your browser memory.
Tesseract.js WASM OCR
Extract text from PDF in your browser.
Recognize text in scanned pages and export searchable output.OCR runs in your browser session, with reviewable text and searchable PDF output.
Workflow preview
Browser-based where supportedInput
Scanned PDF
Runtime
Tesseract.js
Output
Text + PDF
Tesseract.js OCRBrowser-side processingReviewable text workspaceNo file upload required
Local OCR workspace
Drop a scanned PDF to build searchable text.
Pages render locally, Tesseract.js reads the text, and the result exports as both searchable PDF and plain text.
Browse PDF
Local OCR workflow: page rendering, text recognition, review text, and searchable-PDF generation all run in this browser session.
How to use OCR PDF
A clear browser-session workflow for extract text PDF work.
The interface should make the route visible: select files, perform the operation, and download the output from the same session.
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Process with Tesseract.js
Each page is rendered in-browser, recognized with Tesseract.js, and mapped into a searchable PDF output.
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Review and download
After OCR completes, review the extracted text, copy it, download it as TXT, or save the searchable PDF.
Why local processing matters
Compare the processing route before using sensitive documents.
DocuStitch labels supported workflows around the browser session rather than hiding the path behind a generic cloud promise.
DocuStitch supported workflow
- Files selected on device
- Operation runs in browser session
- Output downloads from the tab
Typical cloud workflow
- Files uploaded to remote queue
- Processing depends on server retention policy
- Output returned after transfer
How it works
OCR should expose what is happening instead of hiding behind a magic button.
Tesseract.js WASMTesseract.js runs in WebAssembly directly in your browser rather than on a remote OCR server.
Page-by-page analysisEach page is rasterized locally before OCR so scanned PDF pages can be recognized reliably.
Reviewable outputThe OCR pass returns text you can inspect, copy, download as TXT, or save into a searchable PDF.
Tesseract.js WASMClient-side OCRLocal-firstZero-upload
DocuStitch OCR Engine - Tesseract.js workflow - docustitch.app
Operator notes
Create searchable PDFs in a local OCR workflow
OCR is useful for making scanned documents searchable without pushing them through a remote processing queue. DocuStitch keeps the workflow local for standard use.
This tool uses Tesseract.js compiled to WebAssembly (WASM) together with local PDF page rendering, so scanned PDF pages are processed page by page inside your browser session.
You can now review extracted text, copy it, download a TXT file, and save a searchable PDF from the same OCR pass.
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Tesseract.js WASM
OCR runs in-browser with WebAssembly performance.
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Privacy focused
For standard workflows, no third-party upload step is required.
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Searchable output
Download a searchable PDF and a plain-text export from the same OCR run.
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Fast results
OCR starts immediately without waiting on a remote upload queue.
FAQ
Frequently asked questions
Everything you need to know about OCR PDF.
What does the OCR tool download today?
The route can now return both a searchable PDF and a plain-text export, all generated locally in the browser.
Can I OCR password-protected PDFs?
Yes, as long as you can unlock the file first with the correct password.
Does this already provide a plain-text workspace?
Yes. After OCR finishes, you can review the extracted text on the page, copy it, or download it as TXT before saving the searchable PDF.
Is there a file size limit?
Practical limits depend more on device memory than on cloud upload caps since processing happens locally.
Knowledge hub
Return to workspace
Start processing in your browser.
Supported workflows run locally in your browser session, so you can finish document tasks without a cloud upload step.