Merge a report and appendix: check order and page sizes

Follow this PDF merge case with downloadable inputs, a reference result and page previews. Compare page labels, dimensions and orientation before sharing.

Example and verification evidence

Verified on
2026-10-14
Execution environment
Node v24.14.0 on win32/x64
Reproduction command
cd tools/blog-verification && npm ci && npm test && npm run verify
Result summary
3 pages: REPORT PAGE 1, REPORT PAGE 2, APPENDIX PAGE 1; A4 portrait and Letter landscape sizes retained.
Limitations
Unencrypted text PDF samples only. Encrypted files, signatures, forms, bookmarks and accessibility tags are outside this case.
View example and verification JSON

Attach a landscape appendix to a report

Practice assembling a report and a separate appendix for submission. report.pdf has two A4 portrait pages; appendix.pdf has one Letter landscape page. The target is a three-page PDF in this order: report page 1, report page 2, appendix. Check that the appendix retains its landscape page size after merging.

1. Inspect the inputs

Download report sample (PDF) Download appendix sample (PDF)

Open both files and find REPORT PAGE 1, REPORT PAGE 2 and APPENDIX PAGE 1. Check file names and page counts too: adding the same file twice can duplicate its pages.

Input report: two A4 portrait pages labelled REPORT PAGE 1 and REPORT PAGE 2
Input report: two A4 portrait pages labelled REPORT PAGE 1 and REPORT PAGE 2
Input appendix: one Letter landscape page labelled APPENDIX PAGE 1
Input appendix: one Letter landscape page labelled APPENDIX PAGE 1

2. Set the file order and merge

Open PDF Merge

  1. Select the two sample files.
  2. Put report.pdf above appendix.pdf in the list. Use the up and down arrows if the order differs.
  3. Confirm the listed counts are two pages for the report and one for the appendix, then merge.
  4. Download the result and keep it as a new file.

3. Compare page order and sizes

Download reference merged result (PDF)

Page 1 should read REPORT PAGE 1, page 2 REPORT PAGE 2 and page 3 APPENDIX PAGE 1. The first two pages measure 595.28 × 841.89 pt; the last measures 792 × 612 pt. These are PDF page dimensions, not file sizes or screen pixels.

Merged result: two report pages followed by one landscape appendix
Merged result: two report pages followed by one landscape appendix

If the order differs

If the appendix appears first, change the file order in the merge list and run it again. A five-page result may mean the report was added twice. If the appendix is clipped when printing, check its PDF page size separately from the printer's fit-to-paper setting.

Before using your own document

This example uses unencrypted text PDFs. We have not verified preservation of encrypted or damaged files, digital signatures, form fields, bookmarks or accessibility tags in this case. Keep the original and check those features separately when they matter. This operation does not perform OCR or edit the body text of a scanned document.

Processing can fail depending on file size and available browser memory. If you see an error, open the original in a PDF viewer to check it rather than just renaming it. Practice with these non-personal samples, then check your real output in another PDF viewer before sharing it.

The previews below are renders of the supplied sample PDFs, not screenshots of the tool. They do not establish processing speed or file preservation across all browsers.

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