How to Compare Two PDF Drawing Revisions in Adobe Acrobat
Question details
Engineering teams need an efficient method to compare two versions of a PDF drawing to identify modifications in annotations, graphics, and other critical elements.
- Product
- Adobe Acrobat
- Device & OS
- not provided
- Scenario
- Tracking changes and updates between an older and newer revision of technical engineering PDF drawings.
- Observed behavior
- The user seeks a way to visually and structurally identify the precise differences between multiple PDF drawing revisions without manual inspection.
Ensure you have both the original and the revised PDF drawing files saved locally, and confirm you are using Adobe Acrobat Pro, as the free Adobe Acrobat Reader does not include the file comparison feature.
Use the Compare Files Tool in Acrobat Pro
Adobe Acrobat Pro includes a built-in comparison tool that specifically highlights differences in graphics, text, and annotations between two PDF files.
This tool automatically scans both documents and generates an overlay or side-by-side report, making it incredibly simple to spot additions, deletions, and modifications in complex engineering drawings.
Launch Adobe Acrobat Pro, navigate to the 'Tools' menu at the top, and click on 'Compare Files'.
Click 'Select File' on the left panel to choose your older drawing, and click 'Select File' on the right panel to choose the new revision.
Click the gear icon (Settings) and select the appropriate document type, such as 'Scanned Documents' or 'Presentations', to optimize graphic comparison over text comparison.
Click the 'Compare' button. Acrobat will generate a detailed summary report highlighting all added, deleted, and modified visual elements.
Compare PDF Drawings Side-by-Side in WPS PDF
WPS PDF offers a lightweight, cost-effective way to review, markup, and handle large PDF drawings. You can easily view multiple revisions simultaneously using the split-screen functionality.
- 1. Launch WPS PDF: Open WPS Office and click on the 'PDF' tab from the main dashboard to launch the PDF editor.
- 2. Open Drawing Revisions: Open both the old and new PDF drawing revisions. They will open in separate tabs at the top.
- 3. Access Split View: Navigate to the 'View' tab on the top ribbon menu.
- 4. Enable Side-by-Side Viewing: Click 'Split Window' or simply click and drag one of the PDF tabs to the right side of the screen to view both drawings simultaneously.
- 5. Review Changes: Use the synchronized scrolling feature and zoom tools to manually cross-check graphics and annotations between the two versions.
Frequently Asked Questions
Why can't I find the Compare Documents feature in my Adobe Acrobat?
The 'Compare Files' or 'Compare Documents' feature is exclusively available in Adobe Acrobat Pro. If you are using the free Adobe Acrobat Reader, this advanced tool will not be visible or accessible.
Can I compare scanned PDF drawings that are not text-searchable?
Yes, Acrobat Pro can compare scanned image-based documents. Before running the comparison, ensure you click the settings gear and select 'Scanned Documents' so the tool optimizes for pixel-by-pixel graphic differences rather than text.
How do I save the comparison results as a separate file?
After generating the comparison report in Acrobat Pro, simply go to File > Save As to save the highlighted summary document as a brand new PDF file, which can then be shared with your engineering team.
