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Interleave Two PDFs
Combine two PDFs by alternating their pages: A1, B1, A2, B2 and so on.
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Choose exactly two PDFs or drop them here
Select two PDF files. Processing happens in your browser.
Alternate pages from two PDF files
Select exactly two PDFs. FileFit alternates their pages in selection order: first page from PDF A, first page from PDF B, then second page from each. Remaining pages from a longer PDF are appended in sequence.
FAQ
What if the PDFs have different page counts?
After alternating all matching pairs, the remaining pages from the longer PDF are appended.
When is this useful?
It is useful for combining front-side and back-side scans that were saved as separate PDFs.
Match two stacks before interleaving
Interleaving is useful when a scanner saved front and back sheets separately. Ensure that both input stacks have the intended orientation and order, and inspect the combined document for missing or repeated pages.