Interleave two PDFs page by page, such as A1, B1, A2, B2.
Input & settings
How to use
Interleave two PDFs page by page, such as A1, B1, A2, B2.
Enter or select the source data.
Adjust only the options you need.
Run the tool, review the result, then copy or download it.
Alternate pages from PDF A and PDF B
The result can be A1, B1, A2, B2… or start with B instead. It is intended for two documents whose pages belong together by position.
Choose what happens when the page counts differ
With Append remaining pages enabled, pages left in the longer PDF are added at the end. With it disabled, output stops when the shorter PDF runs out, so extra pages from the longer file are intentionally omitted.
Useful for front/back scans
If a scanner produced separate front-side and back-side PDFs, interleaving can rebuild the sequence. Some scanners save backs in reverse order, so those pages may need reordering first.
This is different from ordinary merging
If you want all pages from A followed by all pages from B, use PDF Merge. Interleaving alternates matching page positions.