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SPECIFICTION
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PdfCompare.app vs PDiff

PdfCompare.app

pdfcompare.app

PDiff

csci.de

Side by side

FigurePdfCompare.appPDiff
Price fromFree—
Free planYes—
Free trial—Yes
Open source——
WebYes—
Windows—Yes
macOS—Yes
Self-hosted—Yes
Plans published11
Spec score · Document Comparison Software7.4 (#19)8.1 (#11)
PurposePdfCompare compares two PDF versions side by side, including text revisions and visual changes.PDiff compares text in PDF documents across layout, formatting, and page-break changes and highlights deviations.
SupportThe support page lists response targets of under four hours for critical security reports, under 24 hours for rendering bugs, and one to two business days for feature suggestions.The maker invites trial users who want to continue to contact it for an offer for a full version tailored to their requirements.

Plans

PdfCompare.app

  • FreeFree

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PDiff

  • PDiff Desktop, PDiff QA, PDiff ProfessionalPriced on request

PDiff pricing →

In their own words

PdfCompare.app

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PDiff

PDiff is desktop software for comparing PDF documents and identifying differences in layout, formatting and page breaks. It displays PDFs side by side, synchronizes extracted text with the pages and highlights deviations in both views. Reviewers can navigate differences, mark changes accepted, hide less relevant changes and add comments. Filtering and review tools include exclusion areas, page ranges, text-flow and table tools, replacement rules, comments and OK checkmarks.

PDiff can compare PDFs with DOC/DOCX, RTF, TXT, XLS and other common formats, converting non-PDF files through their native applications. Outputs include tabular, annotated and side-by-side PDFs, XML, CSV, PDiff project files and CLI return codes. PDiff Professional adds GUI batch processing and command-line operation. CSci Computer Science GmbH describes uses including quality assurance, regulatory compliance, contract and legal review, pharmaceutical packaging and technical documents. The software supports Unicode, including Chinese, Japanese, Korean, Arabic and Hebrew. The maker says processing is local and documents are not transferred over the internet. Business customers can request a free full-functionality trial; pricing for editions is on request.

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