Merge PDF Files
Combine multiple PDF files into a single document
Combine multiple PDF files into a single document, in the exact order you choose, with no page limit beyond individual file size restrictions.
How It Works
How Merge PDF Works
Each uploaded PDF is opened and every page is imported as a template, then copied — in the order the files were added — into a new combined PDF document, preserving each page's original size and orientation.
Because pages are imported at the object level rather than flattened into images, the merged PDF keeps its original text and image quality — there is no re-rendering or compression involved in the merge step itself.
You can reorder files before merging; the final document follows that exact sequence, with each source file's pages appearing consecutively.
Worked Example
See It In Action
Merging a 3-page cover letter and a 10-page resume PDF, in that order, produces a single 13-page PDF with the cover letter first, followed immediately by the resume — ready to send as one attachment.
FAQ
Frequently Asked Questions
How many PDFs can I merge at once?
You can merge as many files as you like, as often as you like — there is no daily limit. Very large batches are limited only by individual file size and total upload size.
Can I change the order of the files before merging?
Yes — reorder the uploaded files before clicking merge; the combined PDF follows that exact order, file by file.
Does merging reduce PDF quality?
No — pages are copied at the object level, preserving the original text sharpness and image resolution from each source file.
Can I merge password-protected PDFs?
Password-protected PDFs need to be unlocked first (see the Unlock PDF tool) before they can be merged, since the merge process needs to read the page contents directly.
