How to merge PDF files
- Open the first fileDrop a PDF onto the editor, or select several files at once.
- Add the restDrop in further PDFs or images. Their pages join the same grid, labelled with the file they came from.
- Put them in orderDrag pages between sections until the sequence is right. Delete any duplicates you no longer need.
- Download one documentPress Download PDF to write everything into a single file.
Merging usually means gluing files end to end. Here you get the finer version: all pages from all files in one grid, so you can interleave them — the signed page from one scan dropped into the middle of the contract, the appendix moved to the back.
Pages from each source document are copied in a single operation, so shared fonts and resources are stored once rather than duplicated for every page. Merged files stay close to the size of the originals combined.
Why this one
Interleave, not just append
Move any page from any source file to any position in the result.
Mixed sources
Merge PDFs and images together — photos and scans become full pages in the same document.
No upload wait
Ten files of 50 MB do not need 500 MB of upload. They are read straight from your disk.
Frequently asked questions
How many files can I merge at once?
As many as your device memory allows. There is no server-side limit because there is no server.
Can I merge PDFs and photos together?
Yes. Images become full PDF pages and can sit anywhere in the sequence.
Will the merged file be huge?
Pages from one source are copied together so shared resources are stored once, keeping the output close to the sum of the inputs.
Can I control the order?
Yes. Drag any page anywhere in the grid before exporting; the export follows exactly what you see.
Related tools
- Organize PDF pagesDelete, reorder, rotate and duplicate pages in one view, then save the document — without sending it to anyone.
- Delete pages from a PDFRemove single pages, a range, or everything after a certain point — and keep the file on your own device while you do it.
- Reorder PDF pagesDrag pages into the right sequence and download the corrected document.
- Add an image to a PDFInsert a photo, screenshot or scanned sheet into a PDF as a full page, exactly where you want it.