Merge PDF
Combine several PDFs into one file, in the order you choose.
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or drag them here
Two or more PDF files
Your files stay on your device
How to use it
Drop your PDFs here, put them in order, and get one combined file. Nothing loses quality. Your files stay on your device.
Need a report and its appendices in one file? A contract scanned in pieces? A pile of receipts as one submission? Merge them.
Drop your PDFs onto the box above. They’re combined in the order shown in the list, so use the arrows to move files up or down — files picked from a folder often arrive in a random order. Then click Merge.
Every page is copied exactly as it is, so text stays sharp and selectable. The combined file is about the size of all the originals added together. Too big to send? Run it through Compress PDF afterwards.
FAQ
Does merging lower the quality?
No. Pages are copied exactly, so the combined file looks identical to the originals.
How do I set the order?
Files are combined in the order of the list. Use the up and down arrows to rearrange them.
How many PDFs can I combine?
As many as you like. Very large sets may just take a little longer.
Can I merge a password-protected PDF?
Not yet. Remove the password first — the tool will tell you if it finds one.
How it worksFor the curious
Merging copies the page objects out of each source document with pdf-lib and writes them into a single new PDF. Nothing is re-encoded, so images keep full quality and the text layer is untouched.
Bookmarks (the outline) and interactive form fields from the source documents are not carried across — the pages themselves are copied, but that surrounding structure is not. For most documents this makes no practical difference.
Encrypted PDFs cannot be read without their password, so the tool reports them rather than failing silently. There is no fixed limit on file count; your device’s memory is the practical ceiling.