PDF Merger combines several PDF files into one document. Every page of every file appears as a thumbnail, so you can drag pages into any order across files, or move whole files to keep their pages together.
You can rotate pages in 90° steps, duplicate or remove them, reverse the whole order, or reset to every page in file order. Pages are copied as they are, so text stays selectable. The merge runs in your browser and nothing is uploaded.
Are my PDFs uploaded?
No. The files are read, previewed, and merged in your browser, and they are gone when you close the page.
How many files can I merge?
Up to 20 PDFs, each up to 100 MB, with up to 500 pages in total, including duplicated pages.
Which files are supported?
Standard PDF files. Encrypted or password-protected PDFs cannot be opened. Bookmarks are not kept, and interactive form fields may not keep working after the merge.
Does merging lower the quality?
No. Pages are copied from the original files without being converted to images.