Visual ComparePro
Pixel-level visual comparison of two PDFs. Pro plan required. Secure and fast.
How to Visual Compare
Upload original PDF
Upload modified PDF
Visual differences are highlighted
Review the comparison report
Frequently Asked Questions
1How does visual compare differ from text compare?
Visual compare detects pixel-level differences including layout shifts, moved images, and formatting changes — not just text changes.
2Can I compare PDFs with different page sizes?
Yes. Pages are scaled to the same dimensions for comparison. Size differences are noted in the report alongside visual changes.
3What formats does the comparison output use?
An interactive overlay in the browser highlights differences. You can toggle between side-by-side and overlay views.
4Is it accurate for design-heavy documents?
Yes. Pixel-level comparison catches every visual change — color shifts, image swaps, font changes, and element repositioning.
Why Use ZiaSign's Visual Compare Tool?
ZiaSign's visual PDF comparison overlays two documents and highlights every pixel-level difference. Spot layout shifts, moved elements, changed images, and formatting differences that text comparison would miss.
Also known as: compare pdf visual · pdf visual diff · pdf pixel comparison · compare pdf layouts
How-to guide
Prefer the step-by-step version first?
Step-by-step instructions to pixel-level visual comparison of two pdfs with ZiaSign.
Popular Ways to Use Visual Compare
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Secure file handling by default
Files are processed securely and automatically deleted after 1 hour so quick PDF jobs do not turn into storage risk.
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