Combine separate documents into one file while keeping the intended sequence.
EditFull practical documentation · edition reviewed: 26 October 2026
When this task helps
Merging PDFs is useful for proposals, receipts, reports and submissions that need to be delivered as a single document.
Worked example
To send a cover, proposal and receipts as one PDF, select the three documents and check their order. The result should start with the cover and contain the sum of the input page counts.
What to check before starting
Check or rename files before starting and review the final page order before sharing.
Choosing the settings
Reorder files in the list, export and review each document boundary. Different page sizes may remain different; merging does not automatically standardize them.
Limits that affect the result
Protected files may need the correct password. Merging does not preserve the cryptographic validity of source digital signatures.
Mistake to avoid
Avoid assuming that the selection order is always the order you want. Verify the result especially when many documents are involved.
Illustrative example: size and quality depend on the source file.