Suggestions appear as you type. Use the up and down arrows to choose one and Enter to open it.

This page's audience our own tag's counts — open to see them
–Visits
–Page views
–Clicks to vendors
–Time on page
–Reading now
Clicks to vendors, by tool
  • –
Top countries
  • –
Devices
  • –

– · visits, page views and clicks counted by our own tag, which counts more than our checked analytics; every figure rounded down · how we count

HankPDF review

Free#11 of 36 in PDF Compression Software

A privacy-focused choice for compressing scanned PDFs locally, in batches or through an API.

8.2/10Editor score
Visit HankPDF
HankPDF8.2 Visit HankPDF

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

HankPDF is an open-source PDF compression command-line tool for scanned documents, including medical and legal records. It processes files locally on Windows, macOS, and Linux, without network uploads or telemetry, and converts oversized PDFs into smaller, searchable documents. Its audience is privacy-conscious individuals, technical teams, and organizations handling document collections that need local processing rather than a browser-based workflow.

Its strongest area is scanned-document compression. MRC-based processing is paired with OCR text-layer extraction, producing searchable PDFs while retaining image content. Content-drift verification checks OCR, images, and document structure, and signature handling addresses signed PDFs. For larger collections, HankPDF can process directory trees with parallel jobs and split output by a maximum PDF size. These features give it a broader workflow than a simple file-size reducer, particularly for archives and records processing.

The surrounding ecosystem is suited to automation: HankPDF includes a Python compression API, a Docker image with native dependencies, and CLI usage across Windows, macOS, and Linux. It is distributed under the Apache-2.0 open-source license and can also run self-hosted. The trade-off is a command-line-first experience: there is no graphical interface or signed desktop installer. Teams wanting scriptable, local processing and document-preservation checks should consider HankPDF; users seeking a point-and-click desktop application should choose a tool built around a graphical interface instead.

HankPDF pros and cons

  • Where it wins
    • Local processing avoids network uploads and telemetry.
    • MRC compression, OCR, and searchable output suit scanned documents.
    • Batching, API, Docker, and size-based output splitting support automation.
  • Where it doesn't
    • There is no graphical interface for desktop users.
    • No signed desktop installer is provided.
    • The command-line workflow may not suit nontechnical teams.

HankPDF fact sheet, pricing and score →

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Last updated · How we research and update