Tesseract
Desktop·DocumentsExtract printed text using an open-source OCR engine on your computer.
Why it fits
Image to Text (OCR)
Good to know: Requires command-line setup and language files; no built-in graphical interface.
Documents
Documents — Compare tools that meet your needs on the same platform and plan. Free output, a trial and a free download are different. Unknown features are never treated as confirmed; check the official conditions before deciding.
Free option
ChatPDF
Website·DocumentsChat with documents and compare concise summaries with cited pages.
Why it fits
PDF Summarization · Document Translation
Good to know: The free plan allows 2 documents daily. Check answers against their sources.
PDF24
Website·DocumentsTurn scanned PDFs and photos into searchable documents with OCR.
Why it fits
Image to Text (OCR)
Good to know: Check the official page for current quotas and output conditions.
Smallpdf
Website·DocumentsFind the main points of long PDFs with concise summaries.
Why it fits
PDF Summarization
Good to know: Verify summaries and important details against the original document.
Adobe Scan
iPhone / iPad·DocumentsTurns paper documents into PDFs with your phone camera and makes their text searchable using OCR. Available for iPhone/iPad and Android for collecting receipts, notes and documents; consider cloud storage and OCR page limits.
Why it fits
Image to Text (OCR)
Good to know: The listings say a subscription raises OCR capacity from 5 to 100 pages. Scans save to Adobe cloud; check recognized text before sharing.
NAPS2
Desktop·DocumentsTurn scanned documents into searchable PDFs with OCR and arrange pages on your computer.
Why it fits
Image to Text (OCR)
Good to know: Download an OCR language first; copy text through a PDF viewer.
Adobe Acrobat
Website·DocumentsAsk a PDF questions and summarize specific sections.
Why it fits
PDF Summarization
Good to know: Verify summaries and important details against the original document.
DeepL
Website·DocumentsUpload a document for translation and compare format and language support.
Why it fits
Document Translation
Good to know: Verify file formats, size limits and language support in the official plan.
Google Lens
Website·DocumentsCopy text from images or view translations of the text you see.
Why it fits
Image to Text (OCR)
Good to know: Available features may vary by device and access method.
Google Translate
Website·DocumentsTranslate DOCX, PDF, PPTX or XLSX documents in a computer browser.
Why it fits
Document Translation
Good to know: Document translation in a computer browser only: DOCX/PDF/PPTX/XLSX up to 10 MB; PDFs up to 300 pages. Text in images or scanned PDF pages is not translated. Mobile document translation is not included.
iLovePDF
Website·DocumentsTurn text in scanned PDFs into searchable, selectable content.
Why it fits
Image to Text (OCR)
Good to know: Verify file formats, size limits and language support in the official plan.
What should you compare?
PDF Summarization: Compare page and file limits; scanned documents may need OCR. Verify important summary claims against the relevant source page.
Image to Text (OCR): Evaluate language, handwriting and table layout separately. Copyable text and a layout-preserving document are different outputs; review the result.
Document Translation: Check source and target languages, file formats and layout preservation. File-size and plan limits may differ from plain-text translation.
Compare documented features
— Not verifiedThis comparison is based on published official documentation. It is not a hands-on test or a quality ranking. Unknown features are not treated as verified.
| App name | Where will you use it? | Free output | No account needed | No watermark | Works offline | Batch processing | Content language | Good to know / Sources and review date |
|---|---|---|---|---|---|---|---|---|
| Tesseract | Desktop | Yes | Yes | — | Yes | — | — | Requires command-line setup and language files; no built-in graphical interface. Sources and review date |
| ChatPDF | Website | Yes | Yes | — | — | — | Turkish | The free plan allows 2 documents daily. Check answers against their sources. Sources and review date |
| PDF24 | Website | Yes | Yes | — | No | — | — | Check the official page for current quotas and output conditions. Sources and review date |
| Smallpdf | Website | Yes | Yes | — | — | — | — | Verify summaries and important details against the original document. Sources and review date |
| Adobe Scan | iPhone / iPad | Yes | — | — | — | — | — | The listings say a subscription raises OCR capacity from 5 to 100 pages. Scans save to Adobe cloud; check recognized text before sharing. Free download does not mean every task is free. Check in-app purchases, export limits and country/device availability in the store. Sources and review date |
| NAPS2 | Desktop | Yes | — | — | — | — | — | Download an OCR language first; copy text through a PDF viewer. Sources and review date |
| Adobe Acrobat | Website | — | No | — | — | — | — | Verify summaries and important details against the original document. Sources and review date |
| DeepL | Website | — | — | — | — | — | — | Verify file formats, size limits and language support in the official plan. Sources and review date |
| Google Lens | Website | — | — | — | — | — | — | Available features may vary by device and access method. Sources and review date |
| Google Translate | Website | — | — | — | — | — | — | Document translation in a computer browser only: DOCX/PDF/PPTX/XLSX up to 10 MB; PDFs up to 300 pages. Text in images or scanned PDF pages is not translated. Mobile document translation is not included. Sources and review date |
| iLovePDF | Website | — | — | — | — | — | — | Verify file formats, size limits and language support in the official plan. Sources and review date |