Merge PDF files into one document. Preview each file’s first page, drag files into order, and download the combined PDF.
PDF Merger
Merge PDF files into one document. Preview each file’s first page, drag files into order, and download the combined PDF.
About PDF Merger
Merge in the order you set
Add multiple PDF files, check each first page and page count, then drag them into the merge order. Combine covers, forms, receipts, or chapter files into one downloadable PDF. Each file contributes all its pages in their original order; individual pages cannot be reordered or removed here.
Designed for local document batches
Merge 2–20 PDF files, up to 50 MiB each. Total input is limited to 100 MiB in the mobile layout and 200 MiB in the desktop layout. Processing uses browser memory, so a batch within these limits can still fail if the device has insufficient memory. The tool does not unlock encrypted PDFs or compress the output to a target size.
FAQ
Common questions and answers about this topic.
Can I change the order of files and individual pages?
Drag files into the order you want before merging. All pages from the first file are followed by all pages from the next file. Page order within each file stays unchanged; this tool cannot select, remove, or reorder individual pages.
How many PDF files can I merge, and what are the size limits?
Select 2–20 PDFs, each no larger than 50 MiB. The total input limit is 100 MiB in the mobile layout or 200 MiB in the desktop layout. These are input limits, not a promised output size. Reduce the batch if the device runs out of memory.
Can this tool unlock password-protected PDFs?
No. There is no password entry or decryption feature, and encrypted PDFs may fail to preview or merge. If you are authorized to open the document, use a tool that can open it with its password to prepare an unencrypted copy before merging.
Will digital signatures, bookmarks, and forms be preserved?
The merger copies pages into a new PDF. Document-level features such as digital signatures, bookmarks, attachments, and some interactive forms may be lost or invalidated. Keep the originals and check the combined document before using it.