ToolBuilt for this task
Actual visual and text comparisons, with local reports.
TWO DOCUMENTS. A CLEARER PICTURE.
Compare PDF.
Compare two PDF documents and highlight their differences.
100% local · Your documents stay on your deviceFree · No file-size quota
See your real document
Review actual pages and settings. Results are checked locally before downloads appear.
Private from the first page
No document uploads, no document database. Self-hosted modules load in the background while you choose files. Capacity follows browser memory and document complexity.
Cara menggunakan Compare PDF
Compare rendered pixels, extracted words or lines, or both. Choose sequential or explicit manual page pairs, adjust real sensitivity thresholds, review highlighted blocks and text changes, and export local HTML or JSON reports. Scanned pages work in visual mode without OCR.
- Choose Original and Revised PDFs. Both documents stay in the local workspace.
- Select Visual, Text, or Combined. Advanced Settings controls sensitivity, resolution, whitespace handling, and page pairing.
- Compare PDFs. Each selected pair is analyzed using actual document pixels or extracted text.
- Review page pairs and detected changes. Download HTML or JSON reports, keeping potentially private extracted text secure.
Pertanyaan tentang Compare PDF
How do I compare two PDFs?
Choose the two files and select Compare PDFs. Review actual page previews, highlighted pixel blocks, and text differences depending on the selected method.
Can I compare scanned PDF files?
Yes, using visual comparison. Text comparison needs selectable text; OCR-assisted comparison is unavailable here. No OCR engine or language model is downloaded by this tool.
Can I highlight text differences?
Yes. Text and Combined modes compare actual extracted words or lines, including numbers, and show removed and added tokens. Extraction order can differ from the page’s reading order; no complete semantic comparison is claimed.
Can I download a comparison report?
Yes. HTML and JSON reports include selected settings, real page-pair counts, pixel/block statistics, and extracted-text changes when selected. PDF and annotated-PDF reports are unavailable.
How are pages matched?
Sequential matching pairs equal page positions and identifies unmatched trailing pages. Manual mapping can represent insertions or deletions elsewhere. Every source page must be mapped exactly once. Automatic heuristic alignment is unavailable.
Does no difference mean the documents are identical?
No. It means no differences were found by the selected checks and thresholds. Metadata, hidden structures, digital signatures, and unselected analysis types are not an identity guarantee.