# OCR PDF for researchers

_Updated July 2026 · Arthize · https://arthize.com/for/researchers/ocr-pdf_

Arthize lets researchers and academics OCR a scanned PDF in a private workspace — free, with no watermark. OCR adds a searchable text layer to a scanned PDF, turning a picture of text into words you can select, search, copy and convert.

## Why researchers OCR a scanned PDF

A researcher merges a paper with its appendices, extracts a results table into Excel for re-analysis, and compresses the figure-heavy submission under a journal's upload limit — privately.

**Built for papers.** Whether it's papers, datasets, appendices, Arthize's ocr pdf keeps the work inside your private workspace. Unpublished work and grant applications are confidential; a private workspace keeps them out of public tools.

## What matters when you OCR a scanned PDF

OCR adds an invisible, selectable text layer over the scanned image.

Without OCR, a scanned PDF is just a picture and can't be searched.

Running OCR first is what makes a scan convert cleanly to Word or Excel.

## How to OCR a scanned PDF

1. **Open the OCR tool** — Sign in and open the OCR tool.
2. **Add your scan** — Upload the scanned or image-only PDF.
3. **Run OCR** — Arthize recognises the text and adds it as an invisible, selectable layer.
4. **Download** — Get a searchable PDF whose text you can copy and convert.

## FAQ

### How do researchers OCR a scanned PDF for free?

OCR adds a searchable text layer to a scanned PDF, turning a picture of text into words you can select, search, copy and convert. On Arthize it's free with no watermark, and the file is deleted after the job — which is why researchers and academics can use it for papers without a confidentiality risk.

### Is it private to OCR a scanned PDF sensitive papers?

Yes. Unpublished work and grant applications are confidential; a private workspace keeps them out of public tools. Files are processed inside your private Arthize workspace and deleted after the job.

### How do I make a scanned PDF searchable?

OCR adds a searchable text layer to a scanned PDF, turning a picture of text into words you can select, search, copy and convert. On Arthize it's free with no watermark and processed privately.

### What is OCR and why does my scan need it?

OCR adds a searchable text layer to a scanned PDF, turning a picture of text into words you can select, search, copy and convert. On Arthize it's free with no watermark and processed privately.