Overlay view
Useful for fast coarse checks and detecting area-level geometry changes.
Detailed guide for PDF comparison
This guide describes a practical workflow for comparing two PDF versions. The goal is to find relevant differences faster and evaluate them with technical clarity.
1. Prepare the files
- Use two technically related plan versions whenever possible.
- Check page order, page size, and orientation before starting.
- Name files clearly, for example with date and revision index.
2. Upload and first run
- Load the older version as Document A and the newer version as Document B.
- Start the comparison in standard mode.
- Review pages with many markers first.
3. Evaluate findings
Split view
Useful for verifying specific component or text changes side by side.
Page-by-page focus
Work page by page and prioritize sections with high project relevance.
4. Typical sources of noise
- Different PDF export profiles can create additional pixel deviations.
- Shifted grids or changed page sizes often create avoidable noise.
- Scans and reduced image quality lower comparison sharpness.
The tool is a visual review aid. Technical approvals should always be backed by project context,
revision index, and clear responsibility.
5. Documentation and handover
Export meaningful views and reference pages clearly. This reduces follow-up questions and makes approval decisions more traceable.