How to use it
- Add the two PDFs. The sample button can be used twice.
- Show the comparison.
- Move to the next page when the counts differ.
A visual check catches a missing page or a rotated scan faster than reading file names. SKY13.app draws the same page index from each file next to the other. If one file is shorter, that side stays blank when you pass its last page.
This is a preview, not an automatic legal redline. It does not highlight every changed word. Use it to look, then go back to the editor that made the change. No download is produced because nothing was modified.
Questions
Are the files uploaded to compare them?
No. Both files are drawn in the tab and discarded when you leave or clear them.
Can I compare on a phone?
Yes. The two pages stack on a narrow screen and sit side by side when there is room.