YYTOOLS / THE EVERYDAY TOOLBOX
PDF Merger
Arrange and merge multiple static PDF documents into one.
Processed locally · No upload · No sign-up
01 / FILES
Organize files. Ready to share.
Files stay in this browser. Choose files and adjust the options to begin.
Up to 20 MiB per file, 50 MiB total.
File order controls output page order. Use ↑ ↓ to reorder. Merging preserves page order within each PDF.
02 / OPTIONS
How to use
- Choose files or load an example. Adjust file order if needed.
- Set options, process files, and review the result or error message.
- Select a result, check the preview and file size, then download.
Select at least two PDFs and arrange their order. Page dimensions, rotation and internal page order are preserved. Document-level bookmarks, attachments and signature validity are not preserved. Documents containing forms or signatures are rejected; export static copies first.
Supports unencrypted static PDFs. Up to 20 MiB per file, 50 MiB for inputs and outputs each, 10 input files, 300 pages per document and combined output, and 100 split files. No script execution, password unlocking, OCR or Word conversion.
Processing runs in a separate worker and stops after 30 seconds. Editing inputs or options clears previous results. Limits raise errors instead of truncating files.
PDF features use pdf-lib (MIT): License and copyright notice