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dialegein

OCR

Make scanned pages searchable with optical character recognition. 48 products support this exact task: 9 absolutely free, 25 free with limits, 9 paid or trial, and 5 offline or self-hosted. The inventory records unresolved; PDF/IMAGE -> PDF; PDF/IMAGE -> structured data or searchable PDF.

48 products recorded · 34 free choices · 12 offline or self-hosted choices. Inventory checked 2026-10-23.

What the inventory records

Exact direction
unresolved; PDF/IMAGE -> PDF; PDF/IMAGE -> structured data or searchable PDF; document -> text; PDF -> accessible PDF/HTML/ePub2
Named as
PDF OCR; OCR PDF; OCR; ocr.highResolution; ocr.formula; ocr.font
Evidence
82 matching inventory rows · 24 confirmed · 24 partly confirmed
Last checked
2026-10-23

This page is about this exact operation only, not a general PDF converter. Rows with unresolved confidence are not counted as support.

Absolutely free

9 products

No payment is needed to use the tool as recorded.

  • Ghostscript

    Artifex Software

    Product record
    Platform and processing
    Windows · macOS · Linux · API · Self-hosted · Runs locally
    Account
    No account needed
    Price signal
    Open source
    Evidence
    Confirmed

  • gImageReader

    Vendor not listed

    Product record
    Platform and processing
    Windows · Linux · Runs locally
    Account
    No account needed
    Price signal
    Open source
    Evidence
    Confirmed
  • Product record
    Platform and processing
    Web · Windows · macOS · Linux · Android · Runs locally
    Account
    No account needed
    Price signal
    Free
    Evidence
    Confirmed

  • OCRmyPDF

    James R. Barlow

    Product record
    Platform and processing
    Windows · macOS · Linux · Self-hosted · Runs locally
    Account
    No account needed
    Price signal
    Open source
    Evidence
    Confirmed

  • PDF24

    geek Software GmbH

    Product record
    Platform and processing
    Web · Windows · Vendor cloud
    Account
    No account needed
    Price signal
    Free
    Evidence
    Partly confirmed

  • PDFgear

    PDF GEAR TECH PTE. LTD.

    Product record
    Platform and processing
    Windows · macOS · iOS · Android · Web · Runs locally
    Account
    No account needed
    Price signal
    Free
    Evidence
    Partly confirmed

  • pikepdf

    James R. Barlow

    Product record
    Platform and processing
    Windows · macOS · Linux · Self-hosted · Runs locally
    Account
    No account needed
    Price signal
    Open source
    Evidence
    Partly confirmed

  • PyMuPDF

    Artifex Software, Inc.

    Product record
    Platform and processing
    Windows · macOS · Linux · Runs locally
    Account
    No account needed
    Price signal
    Open source
    Evidence
    Partly confirmed

  • SnackPDF

    Vendor not listed

    Product record
    Platform and processing
    Web · Runs locally
    Account
    No account needed
    Price signal
    Free
    Evidence
    Confirmed

Free with limits

25 products

There is an indefinite free way to use it, usually with limits.

  • Adobe Acrobat

    Vendor not listed

    Product record
    Platform and processing
    Web · Windows · macOS · Vendor cloud
    Account
    No account needed
    Price signal
    Free · paid from £14.99 a month
    Evidence
    Partly confirmed

  • AvePDF

    Orpalis Imaging SAS

    Product record
    Platform and processing
    Web · Vendor cloud
    Account
    No account needed
    Price signal
    Free · paid from £51.00 a year
    Evidence
    Confirmed
  • Product record
    Platform and processing
    Web · API · Self-hosted · Linux · Vendor cloud
    Account
    Account required
    Price signal
    Free tier
    Evidence
    Partly confirmed

  • borb

    Vendor not listed

    Product record
    Platform and processing
    Windows · macOS · Linux · Self-hosted · Runs locally
    Account
    No account needed
    Price signal
    Free · paid from £214.00 a year
    Evidence
    Partly confirmed

  • Docling

    LF AI & Data Foundation

    Product record
    Platform and processing
    Windows · macOS · Linux · API · Self-hosted · Runs locally
    Account
    No account needed
    Price signal
    Free tier
    Evidence
    Partly confirmed

  • Genius Scan

    Vendor not listed

    Product record
    Platform and processing
    Web · iOS · Android · Runs locally
    Account
    No account needed
    Price signal
    Free · paid from £29.93 a year
    Evidence
    Confirmed

  • iLovePDF

    Vendor not listed

    Product record
    Platform and processing
    Web · Windows · macOS · iOS · Android · API · Vendor cloud
    Account
    No account needed
    Price signal
    Free · paid from £5.00 a month
    Evidence
    Partly confirmed

  • iText

    Apryse

    Product record
    Platform and processing
    Windows · macOS · Linux · Self-hosted · Runs locally
    Account
    No account needed
    Price signal
    Free tier
    Evidence
    Confirmed

  • Marker

    Endless Labs, Inc. dba Datalab

    Product record
    Platform and processing
    Windows · macOS · Linux · API · Self-hosted · Runs locally
    Account
    No account needed
    Price signal
    Free tier
    Evidence
    Confirmed

  • PDF Architect

    Avanquest pdfforge GmbH

    Product record
    Platform and processing
    Windows · Runs locally
    Account
    Account required
    Price signal
    Free · paid from £94.00 a year
    Evidence
    Partly confirmed

  • PDF Candy

    Icecream Apps Limited

    Product record
    Platform and processing
    Web · Windows · Vendor cloud
    Account
    No account needed
    Price signal
    Free · paid from £4.00 a month
    Evidence
    Partly confirmed

  • PDF Expert

    Readdle Limited

    Product record
    Platform and processing
    macOS · iOS · Runs locally
    Account
    Account requirement not verified
    Price signal
    Free · paid from £72.99 a year
    Evidence
    Partly confirmed

  • PDF-XChange Editor

    PDF-XChange Co Ltd

    Product record
    Platform and processing
    Windows · Runs locally
    Account
    No account needed
    Price signal
    Free · paid from £48.00
    Evidence
    Partly confirmed

  • PDF2Go

    QaamGo Web GmbH

    Product record
    Platform and processing
    Web · Windows · macOS · Linux · Vendor cloud
    Account
    No account needed
    Price signal
    Free · paid from £6.85 a month
    Evidence
    Partly confirmed

  • pdfRest

    Datalogics, Inc.

    Product record
    Platform and processing
    API · Self-hosted · Vendor cloud
    Account
    Account requirement not verified
    Price signal
    Free · paid from £7.48 a month
    Evidence
    Partly confirmed

  • PDFsam

    Sober Lemur S.r.l.

    Product record
    Platform and processing
    Windows · macOS · Linux · Runs locally
    Account
    No account needed
    Price signal
    Free · paid from £29.00 a year
    Evidence
    Partly confirmed

  • Scanner Pro

    Readdle Limited

    Product record
    Platform and processing
    iOS · Runs locally
    Account
    Account requirement not verified
    Price signal
    Free tier
    Evidence
    Confirmed

  • Sejda

    Sejda BV

    Product record
    Platform and processing
    Web · Windows · macOS · Linux · Vendor cloud
    Account
    No account needed
    Price signal
    Free · paid from £5.00
    Evidence
    Partly confirmed

  • Smallpdf

    Smallpdf AG

    Product record
    Platform and processing
    Web · Windows · iOS · Android · Vendor cloud
    Account
    No account needed
    Price signal
    Free · paid from £6.75 a month
    Evidence
    Partly confirmed

  • Soda PDF

    Avanquest Software SAS

    Product record
    Platform and processing
    Web · Windows · Varies by edition
    Account
    Account requirement not verified
    Price signal
    Paid
    Evidence
    Confirmed

  • Spire.PDF

    e-iceblue Corporation

    Product record
    Platform and processing
    Windows · Linux · macOS · Self-hosted · Runs locally
    Account
    Account requirement not verified
    Price signal
    Paid
    Evidence
    Confirmed

  • Surya

    Endless Labs, Inc. dba Datalab

    Product record
    Platform and processing
    Linux · Windows · macOS · Self-hosted · Runs locally
    Account
    No account needed
    Price signal
    Free tier
    Evidence
    Confirmed

  • Syncfusion PDF

    Syncfusion, Inc.

    Product record
    Platform and processing
    Windows · macOS · Linux · Self-hosted · Web · Runs locally
    Account
    Account required
    Price signal
    From £889.30 a year
    Evidence
    Confirmed

  • Wondershare PDFelement

    Wondershare Technology Group Co., Limited

    Product record
    Platform and processing
    Web · Windows · macOS · iOS · Android · Vendor cloud
    Account
    Account requirement not verified
    Price signal
    Free · paid from £59.33 a year
    Evidence
    Partly confirmed

  • Xodo

    Apryse

    Product record
    Platform and processing
    Web · Windows · macOS · Linux · iOS · Android · Varies by edition
    Account
    Account requirement not verified
    Price signal
    Free · paid from £6.05 a month
    Evidence
    Confirmed

Paid or trial

9 products

The record shows a paid product, with or without a trial.

  • Equidox

    Vendor not listed

    Product record
    Platform and processing
    Web · Windows · macOS · Linux · Self-hosted · Vendor cloud
    Account
    Account required
    Price signal
    Paid
    Evidence
    Confirmed

  • Foxit PDF Editor

    Vendor not listed

    Product record
    Platform and processing
    Windows · macOS · Web · iOS · Android · API · Varies by edition
    Account
    No account needed
    Price signal
    From £8.15 a month
    Evidence
    Confirmed

  • Mindee

    Mindee SAS

    Product record
    Platform and processing
    API · Vendor cloud
    Account
    Account required
    Price signal
    Paid
    Evidence
    Confirmed

  • Nutrient

    Nutrient

    Product record
    Platform and processing
    Web · macOS · iOS · Android · API · Self-hosted · Windows · Linux · Varies by edition
    Account
    Account required
    Price signal
    Paid
    Evidence
    Confirmed

  • PDF Studio

    Apryse Software Corp.

    Product record
    Platform and processing
    Windows · macOS · Linux · Runs locally
    Account
    Account requirement not verified
    Price signal
    Paid
    Evidence
    Partly confirmed

  • Pdftools SDK

    PDF Tools AG, Steinstrasse 21, 8003 Zurich, Switzerland

    Product record
    Platform and processing
    Windows · Linux · macOS · Self-hosted · Runs locally
    Account
    Account requirement not verified
    Price signal
    Paid
    Evidence
    Partly confirmed

  • Power PDF

    Tungsten Automation Corporation

    Product record
    Platform and processing
    Web · Windows · macOS · iOS · Android · Varies by edition
    Account
    Account requirement not verified
    Price signal
    From £95.00
    Evidence
    Partly confirmed

  • PrizmDoc

    Apryse

    Product record
    Platform and processing
    API · Self-hosted · Web · Windows · Linux · Varies by edition
    Account
    Account requirement not verified
    Price signal
    Paid
    Evidence
    Partly confirmed

  • SensusAccess

    Sensus ApS

    Product record
    Platform and processing
    Web · Vendor cloud
    Account
    Account requirement not verified
    Price signal
    Paid
    Evidence
    Confirmed

Offline or self-hosted

5 products

Paid products that run locally or can be self-hosted. Free and free-tier local products stay in their price tier above.

  • Product record
    Platform and processing
    Windows · Linux · macOS · Self-hosted · Runs locally
    Account
    Account requirement not verified
    Price signal
    From £4,489.17 a year
    Evidence
    Confirmed

  • Foxit PDF SDK

    Foxit Software Incorporated

    Product record
    Platform and processing
    Windows · macOS · Linux · iOS · Android · Web · Self-hosted · Runs locally
    Account
    Account requirement not verified
    Price signal
    Paid
    Evidence
    Confirmed
  • Product record
    Platform and processing
    Windows · Linux · macOS · Android · iOS · Web · Self-hosted · Runs locally
    Account
    No account needed
    Price signal
    Paid
    Evidence
    Confirmed

  • Master PDF Editor

    Code Industry Ltd

    Product record
    Platform and processing
    Windows · macOS · Linux · Runs locally
    Account
    No account needed
    Price signal
    From £59.30
    Evidence
    Confirmed

  • Nitro PDF Pro

    Nitro Software, Inc.

    Product record
    Platform and processing
    Windows · macOS · iOS · Runs locally
    Account
    Account required
    Price signal
    Paid
    Evidence
    Partly confirmed

What this page counts

The inventory has 82 matching rows for this operation. 24 products have confirmed evidence and 24 have partly confirmed evidence; unresolved rows are excluded. A product appears only when the inventory names this exact operation. A vendor that bundles several conversions into one unspecified tool is not counted here.

The tiers describe commercial access at the record level. A free choice may still have usage limits, and an offline choice may require a paid licence. Check the linked product record before relying on a feature. The inventory was last checked 2026-10-23; the source and date for each product are on its record.

Related exact tasks

These are adjacent operations that readers often compare with ocr. They remain separate tasks.

All tasks / All PDF tools / How we check