Start with a reliable source set
Name your files in the intended sequence, for example 01-cover.pdf, 02-contract.pdf and 03-appendix.pdf. Confirm that you have permission to combine and share the documents. Save originals before editing.
Check each PDF opens correctly before uploading it into the merge interface. A password-protected or damaged PDF may not merge as expected; do not attempt to bypass restrictions.
Arrange and combine
Open the PDF Merge tool, add the chosen documents, and set their sequence. A 2-page cover, 5-page agreement and 3-page appendix should produce a 10-page document if every page is included.
Generate the combined PDF and open it in a separate viewer. Do not assume that seeing a success message means every page is correct.
Check what the merge retained
Inspect the first and last pages of each source file, especially transitions between documents. Check rotation, text selection, small print, embedded links and whether fonts are readable.
Digital signatures, interactive forms, bookmarks and annotations can behave differently after PDF processing. If any of these matter legally or operationally, validate the finished file in the receiving application.
Sharing and privacy
Use neutral filenames that do not expose confidential client names. Before sharing, verify the recipients, file size and whether confidential pages were accidentally included.
For highly sensitive documents, follow your organization’s handling rules. Avoid leaving copies on shared or public computers.