Start with these steps
- Gather the PDFs and decide the order in which their pages should appear.
- Choose at least two files in Merge PDF and arrange them in the workspace.
- Merge, download the combined PDF, and inspect the page boundaries between documents.
Prepare a simple document order
Before selecting files, write down the intended sequence: for example, cover letter, application, then supporting records. Temporary names such as 01-cover.pdf and 02-application.pdf can make that sequence easier to recognize, but the workspace order is the one that determines the merged output.
Check that each source contains the pages you need. A filename does not prove that a file has the correct revision or that its internal pages are in order. Unlock protected PDFs with their known passwords first, and only work with documents you are authorized to modify.
File order and page order are different decisions
Merging follows the file arrangement displayed in the workspace. Combining a three-page file A with a two-page file B should therefore produce A’s pages followed by B’s pages. It does not mean alternating A1, B1, A2, B2.
If you need only part of a source, extract the required pages first and then merge those outputs. A clear two-step workflow is easier to verify than merging unrelated pages and hoping the final file happens to match the requested packet.
Scroll sideways to compare all columns.
| Requirement | Preparation |
|---|---|
| Keep each document together | Arrange complete PDFs in the intended sequence. |
| Include only a few pages from a report | Extract those pages before merging. |
| Submit a combined packet below a size limit | Merge first, inspect it, then compress if needed. |
| Preserve an important original | Keep the source file and work with a downloaded output copy. |
Review the combined file before sharing
Add up the expected page counts and compare that total with the finished PDF. Inspect the final page of each source and the first page of the next one. This catches missing attachments, duplicate covers, and a surprising file order much faster than checking only the first page.
Merging is not a promise to compress the input total. PDF resources and structure may be rewritten, and the result size can differ from the sum of the inputs. If you need a smaller packet, use Compress PDF after confirming the page order. Important forms, navigation, or certified documents deserve a separate check because rebuilding a PDF can affect document-level behavior.
Check the finished file
- The expected files and revisions were selected.
- The merged page count matches the intended packet.
- Each transition between source documents is correct.
- The result opens and meets the recipient’s file-size rule.
Tools for this workflow
Read the tool’s current limits before choosing a file. See our privacy policy or contact support for help.