Prove the page order with a three-page practice merge
Load PDF A and PDF B. With A above B in the selected-file list, merge them and open the download. Its pages should read A1 → A2 → B1. Move B above A and merge again: the expected order becomes B1 → A1 → A2.
| Input order | Expected page order | Total |
|---|---|---|
| A, then B | A1 → A2 → B1 | 3 pages |
| B, then A | B1 → A1 → A2 | 3 pages |
Download PDF A (two pages) · Download PDF B (one page).
The controls reorder whole documents. They do not interleave, delete or rearrange pages inside a source PDF. Prepare each source in the intended internal order first.
The merge copies pages into a new document. Do not assume document-level bookmarks, attachments, portfolios or interactive behaviour will be carried across exactly; check features that matter in an independent PDF viewer.
Download the example result, generated through this tool with the settings above on 27 October 2026. Open it in your PDF viewer to check the page order and layout.
Before you accept the download
- Compare the output page count with the sum of the inputs.
- Open the first and last page of each original’s section and check orientation.
- Inspect any form fields you rely on in the new file.
- Keep signed originals. The tool rejects detected digital signatures instead of presenting the merged copy as still validly signed.
How it works
Three clear steps
- 01
Choose two or more PDFs.
- 02
Confirm the order and remove any unwanted file.
- 03
Merge, review the page count, and download the valid result.
What this tool does
Reorder or remove files before merging, then review the combined page count and final byte size.
How this result is produced
Each selected PDF is validated, then its pages are copied into one new local document in the order shown. Protected or malformed files are rejected rather than bypassed.
Practical example
To combine three documents, add them, use the order controls to arrange them, then verify the total page count before downloading the merged file.
Limits and troubleshooting
- Password-protected, encrypted, malformed, or restricted documents are rejected.
- The tool does not bypass passwords, DRM, or permissions.
When one document is rejected, open it in the authorized source application and save a fresh, unprotected PDF. Merge fewer files at a time if the combined page count or memory demand is too high for the device.
Questions people ask
Can I merge a password-protected PDF?
No. Remove protection using the authorized source application first. Exact Size Tools never attempts to bypass document restrictions.