No. 18 of 25 ·Document Comparison Software

PDiff

Windows · Mac · Self-hosted

Freedom report

One barScore 5.1

Free tierNo free tier on record
Open codeNo open-source code on record
Runs widely2 of 6 device platforms
DocumentedPlans, terms and facts published

PDiff is ranked #18 of 25 in document comparison software on Freedom251. It runs on macOS, Self-hosted, Windows. There is no free plan. A free trial is offered.

PDiff plans and pricing

All plans

PDiff Desktop, PDiff QA, PDiff Professional Not published Contact CSci for an offer tailored to your requirements. Editions differ in features; Windows 64-bit and macOS 14+ are listed. csci.de · 7 Oct 2026

Compared on document comparison software

Free plan: No
PDF comparison: Yes
Office file comparison: Yes
Formatting changes: Yes
Redline output: Yes
Deployment: desktop

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The record

Purpose: PDiff compares text in PDF documents across layout, formatting, and page-break changes and highlights deviations.
File formats: It imports DOC/DOCX, RTF, TXT, XLS, and other common formats by converting them through their native applications, allowing comparisons with PDFs.
Review display: It shows compared PDFs side by side with synchronized extracted text and highlights differences in both views.
Review controls: Users can navigate differences, mark changes as accepted, hide less relevant changes, and optionally add comments.
Reports: It can produce tabular PDF, annotated PDF, side-by-side PDF, XML, CSV, PDiff project, and CLI return-code outputs.
Filtering: Its six listed tools include exclusion areas, page ranges, text-flow and table tools, replacement rules, and comments or OK checkmarks.
Automation: PDiff Professional supports GUI batch processing and command-line operation for integration into other software and workflows.
Use cases: The maker describes use for quality assurance, regulatory compliance, contract review, legal documents, pharmaceutical packaging, and other business-critical document checks.
Languages: PDiff supports Unicode, including Chinese, Japanese, Korean, Arabic, and Hebrew text.
Data handling: The maker says PDiff works locally without cloud processing and that documents are never transferred over the internet.
PDF processing: PDiff uses the Adobe PDF Library for PDF processing and text analysis.
Trial: Business customers can request a free, full-functionality trial by download; it stops working when the trial ends and does not automatically convert to a paid version or subscription.
Trial requirements: The trial page lists 64-bit Windows or Apple Silicon Mac with macOS 14 or newer, at least 8 GB RAM, and an internet connection as requirements.
Support: The maker invites trial users who want to continue to contact it for an offer for a full version tailored to their requirements.

Where it ranks on Freedom251

Best Document Comparison Software in 2026#18 of 25

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Sources

csci.de/en/pdiff/· checked 7 Oct 2026
csci.de/en/pdiff/trial/· checked 7 Oct 2026
csci.de/en/cloudless/· checked 7 Oct 2026
csci.de/en/company/· checked 7 Oct 2026
csci.de/en/pdiff/details/· checked 7 Oct 2026