Best Free PDF OCR Tools in 2026 (Page and File Size Limits)
Eight free routes to OCR compared on page caps, file-size caps, hourly limits and the paid step, with each vendor page checked on 10 October 2026.
Short answer: PDF24 is free for one scanned file. Its OCR page needs no registration and prints no page or size cap, so it is the first pick for a single scan. For a longer scan, Sejda prints the most free caps: 10 pages per OCR task, 50 MB per file and three tasks an hour. Adobe runs OCR for free, but you sign in to download the result.
Key facts8 tools compared: PDF24 OCR, Adobe Acrobat online OCR, Sejda online OCR, PDFgear Desktop OCR…
- 8 tools compared: PDF24 OCR, Adobe Acrobat online OCR, Sejda online OCR, PDFgear Desktop OCR, onlineocr.net, OCRmyPDF, Google Docs (open a PDF), Tesseract
- Adobe Acrobat online OCR (best for: A team on Acrobat that wants Adobe's own OCR for one document, with editing possible later): Free to run OCR, but you sign in to download the file. Acrobat Pro is US$19.99/mo on an annual plan billed monthly.
- Sejda online OCR (best for: Scans of up to 10 pages per task, when you want a free tool that prints its caps): Free: 10 pages per OCR task, 50 MB per file, 3 tasks an hour. Paid plans include OCR on up to 100 pages.
- PDFgear Desktop OCR (best for: Several scans in one sitting, when you want a desktop app and no printed daily cap): Free: PDFgear says its desktop OCR is completely free to use. No OCR price is listed.
Toolradar data: Toolradar tracks 11,051 software tools across 343 categories as of October 2026, and its PDF editors page is one of them. OCR is the step that turns the letters in a scanned page into text you can search, select and copy.
This guide ranks eight free routes to OCR, including two open-source engines you install yourself.
We read each tool's own OCR page and, where it has one, its pricing page, on 10 October 2026, and every cap below is the one that vendor prints.
If the next step is turning the result into Word, read our free PDF to Word converter guide.
It covers the conversion caps, while this page covers the OCR step that comes first. PDF24 and PDFgear both appear below with their own limits.
Top Picks
Based on features, real-world fit, and value for money.
A free browser OCR tool with no registration and no printed cap, where uploads are deleted from its server after one hour.
Free, with no registration. No page or size cap is printed on the OCR page.
One scanned file at a time, when you want no account and no printed cap to plan around.
Adobe's free online OCR recognizes text in a PDF with no printed size or page cap, but the result downloads only after a sign-in.
Free to run OCR, but you sign in to download the file. Acrobat Pro is US$19.99/mo on an annual plan billed monthly.
A team on Acrobat that wants Adobe's own OCR for one document, with editing possible later.
A free OCR tool that prints the most caps on this list: 10 pages per task, 50 MB per file and three tasks an hour.
Free: 10 pages per OCR task, 50 MB per file, 3 tasks an hour. Paid plans include OCR on up to 100 pages.
Scans of up to 10 pages per task, when you want a free tool that prints its caps.
| Tool | Pricing | Best for |
|---|---|---|
| PDF24 OCR | Free, with no registration. No page or size cap is printed on the OCR page. | One scanned file at a time, when you want no account and no printed cap to plan around. |
| Adobe Acrobat online OCR | Free to run OCR, but you sign in to download the file. Acrobat Pro is US$19.99/mo on an annual plan billed monthly. | A team on Acrobat that wants Adobe's own OCR for one document, with editing possible later. |
| Sejda online OCR | Free: 10 pages per OCR task, 50 MB per file, 3 tasks an hour. Paid plans include OCR on up to 100 pages. | Scans of up to 10 pages per task, when you want a free tool that prints its caps. |
| PDFgear Desktop OCR | Free: PDFgear says its desktop OCR is completely free to use. No OCR price is listed. | Several scans in one sitting, when you want a desktop app and no printed daily cap. |
| onlineocr.net | Free for guests: 5 files an hour, 15 MB per file. Registered users get 50 free pages, with no period stated. | Quick guest conversions of small scans, when you do not want to sign up. |
| OCRmyPDF | Free under the MPL-2.0 license. No hosted service or paid tier is listed. | Developers and IT teams that want no page cap and run OCR on their own machine or server. |
| Google Docs (open a PDF) | Free: Google's help page sets a 2 MB limit for converting a file to Google Docs. | A small text PDF you want as an editable shared document, not a multi-page scan. |
| Tesseract | Free under the Apache License 2.0. No hosted or paid service is listed. | Engineers who want an OCR step inside a script or pipeline on their own machine. |
Pricing read from each vendor's own pricing page, checked Oct 2026. Every vendor here publishes a price.
PDF24 OCR
A free browser OCR tool with no registration and no printed cap, where uploads are deleted from its server after one hour.
- Pricing
- Free, with no registration. No page or size cap is printed on the OCR page.
Best for: One scanned file at a time, when you want no account and no printed cap to plan around.
Pros
- The OCR page calls the tool free to use.
- No page or file-size cap is printed, so a long scan is not turned away by a stated limit.
- Uploaded files are deleted from the server after one hour, the only retention figure we read on this list.
Cons
- The page warns that OCR is very time-consuming, so a long scan means a long wait.
- It lists a long language dropdown but gives no count, so check your language is there before you upload.
Adobe Acrobat online OCR
Adobe's free online OCR recognizes text in a PDF with no printed size or page cap, but the result downloads only after a sign-in.
- Pricing
- Free to run OCR, but you sign in to download the file. Acrobat Pro is US$19.99/mo on an annual plan billed monthly.
Best for: A team on Acrobat that wants Adobe's own OCR for one document, with editing possible later.
Pros
- Adobe describes the online tool as free, and its page says it recognizes text in a PDF document.
- No page or file-size cap is printed, so there is no figure to check before a long job.
- Editing the recognized text needs Acrobat Pro, which Adobe offers with a seven-day free trial.
Cons
- The free step asks for a sign-in before the searchable file can be downloaded or shared.
- Because no cap is printed, a long scan has no stated ceiling to plan around.
Sejda online OCR
A free OCR tool that prints the most caps on this list: 10 pages per task, 50 MB per file and three tasks an hour.
- Pricing
- Free: 10 pages per OCR task, 50 MB per file, 3 tasks an hour. Paid plans include OCR on up to 100 pages.
Best for: Scans of up to 10 pages per task, when you want a free tool that prints its caps.
Pros
- The OCR page prints 10 pages per task, 50 MB per file and three tasks an hour.
- A 50 MB file fits the free file-size cap, so a large report does not need splitting first.
- The paid OCR allowance is printed as 100 pages, so the step up is clear before you pay.
Cons
- A 30-page scan needs three OCR tasks on the free tier, which uses the whole hourly allowance.
- The OCR page prints different page figures in different messages, so check the cap on the day you use it.
PDFgear Desktop OCR
A free desktop app whose OCR the page calls completely free, with 30-plus recognition languages.
- Pricing
- Free: PDFgear says its desktop OCR is completely free to use. No OCR price is listed.
Best for: Several scans in one sitting, when you want a desktop app and no printed daily cap.
Pros
- PDFgear states its desktop OCR is completely free to use.
- The page names 30-plus OCR languages.
- The page prints no page or size cap for the desktop OCR feature.
Cons
- The desktop route means an install, so a single file takes longer than the browser tools.
- The page prints no cap, so check the desktop app's own terms before a large batch.
onlineocr.net
A browser OCR tool with no signup for basic use, a 15 MB guest file cap and 46 recognition languages.
- Pricing
- Free for guests: 5 files an hour, 15 MB per file. Registered users get 50 free pages, with no period stated.
Best for: Quick guest conversions of small scans, when you do not want to sign up.
Pros
- Basic use needs no signup, which keeps a one-off scan quick.
- The page names 46 recognition languages, more than the 30-plus that PDFgear names.
- Registration lifts the file cap to 200 MB, so a signed-in user can run a much larger scan.
Cons
- Guests get five files an hour at 15 MB each, so a batch of 20 files takes four hours.
- The 50 free pages for registered users come with no period on the page, so the allowance may be a one-off.
OCRmyPDF
An open-source tool that adds an OCR text layer to scanned PDFs, installed with apt or brew or run as a Docker image.
- Pricing
- Free under the MPL-2.0 license. No hosted service or paid tier is listed.
Best for: Developers and IT teams that want no page cap and run OCR on their own machine or server.
Pros
- The project is licensed under the Mozilla Public License 2.0, so the tool is free to use.
- No page or file-size cap exists, because you run it yourself and the limit is your hardware.
- It installs with apt or brew, and a Docker image is available.
Cons
- You need a command line and an install, so it is not a browser tool for one file.
- The page lists no hosted service, so you run, update and support your own install.
Google Docs (open a PDF)
Google's help page says a PDF opens in Google Docs with a 2 MB cap, and it does not name OCR for scanned PDFs.
- Pricing
- Free: Google's help page sets a 2 MB limit for converting a file to Google Docs.
Best for: A small text PDF you want as an editable shared document, not a multi-page scan.
Pros
- The route is right-click, Open with, Google Docs, as Google describes it on its help page.
- The 2 MB cap is printed clearly, so you can check the file size before you start.
- The result lands in Google Docs, where a team can comment on it.
Cons
- At 2 MB, a multi-page scan above that size will not convert at all.
- The page warns that lists, tables, columns and footnotes are unlikely to carry over, so a scanned table needs a second pass.
Tesseract
An open-source OCR engine for the command line and libraries, writing plain text, hOCR, PDF or an invisible-text PDF.
- Pricing
- Free under the Apache License 2.0. No hosted or paid service is listed.
Best for: Engineers who want an OCR step inside a script or pipeline on their own machine.
Pros
- The Apache License 2.0 allows free use in commercial projects as well.
- It writes plain text, hOCR and PDF, including an invisible-text PDF overlay.
- The project sets no cap, because you run the engine yourself.
Cons
- It has no browser interface, so a non-technical user needs another tool.
- A single PDF means setting up a local install and a command first, which makes it the slowest route for one file.
What it is
A free PDF OCR tool reads a scanned page and adds a text layer, so the file can be searched and selected. Most free tiers cap the pages, the file size or the number of tasks per hour, and that cap decides which tool a scan fits.
A scan of a receipt and a scan of a long contract need different tools, even when both are free.
Why it matters
The cap decides the tool, so read it before you upload. Sejda stops each free OCR task at 10 pages, so a 30-page scan takes three tasks, which is the whole three-task hourly allowance. Google's help page sets 2 MB as the largest file it converts, and a multi-page scan can exceed that before you start.
Adobe and PDF24 print no page or size cap on their OCR pages, which is useful. No printed cap does not mean a fast job, and PDF24's own page warns that OCR is very time-consuming.
Key features to look for
Pricing
Prices are in US dollars, read on each vendor's own page on 10 October 2026. Adobe's pricing page shows dollars and lists Acrobat Pro at US$29.99 a month billed monthly, US$19.99 a month on an annual plan billed monthly, and US$239.88 a year prepaid, per Adobe's Acrobat pricing page.
Sejda's pricing page shows euro prices only, so we quote no paid figure for it and only its printed OCR allowance of 100 pages.
How we compared: each tool's own OCR page, PDF24 OCR page, PDFgear OCR page and onlineocr.net were read on 10 October 2026.
We ran no scans, so this list does not rate OCR accuracy. Limits are what the vendor prints. Google's limit comes from its Drive help page.
OCRmyPDF and Tesseract have no hosted price, so they are free software you run yourself, read on their project page and Tesseract repository.
| Plan | Price | Best for |
|---|---|---|
| PDF24 OCR | Free | No registration; no page or size cap printed |
| Sejda free | Free | 10 pages per OCR task, 50 MB per file, 3 tasks an hour |
| Sejda paid | Not listed in USD | OCR on up to 100 pages on paid plans |
| Adobe Acrobat online OCR | Free | Sign in to download; no page or size cap printed |
| Acrobat Pro monthly | US$29.99/mo | Monthly billing, with editing of recognized text |
| Acrobat Pro annual | US$19.99/mo | Annual plan, billed monthly |
| Acrobat Pro prepaid | US$239.88/yr | Annual plan paid in one payment |
| PDFgear Desktop OCR | Free | Desktop app; 30-plus OCR languages |
| onlineocr.net guest | Free | 5 files an hour, 15 MB per file |
| onlineocr.net registered | Free | 50 free pages and 200 MB per file, no period stated |
| OCRmyPDF | Free | Open source under MPL-2.0; you host it |
| Tesseract | Free | Open source under Apache-2.0; you run the engine |
The bottom line
Start with PDF24 for one scanned file. It is free, needs no registration, and prints no page or size cap. Use Sejda when you want printed caps to plan around, 10 pages per OCR task. Use Adobe when you already run Acrobat and accept the sign-in.
Pick OCRmyPDF or Tesseract for large or private files when you can install software.
Cite this: Techpresso, "Best Free PDF OCR Tools in 2026", October 2026.
Frequently asked questions
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