How to merge multiple PDFs into one
Merge PDF joins several documents into a single file, one after another, with every page exactly as it was. Pages are not turned into images, so text stays selectable and quality does not change.
It is what you need when a form asks for one PDF and you have your ID, payslip and certificate as separate files, or when you want to send a report and its appendices as a single attachment.
Step by step
- Click Choose PDF or drag all your documents into the upload area. You can add more later with Add files.
- In the Your files list, use the up and down arrows to put the documents in their final order.
- Remove any file you added by mistake.
- Run the merge, check the result in the preview and click Download.
What is kept when you combine PDFs
Pages are copied without being recompressed, so images and text look the same as in the originals. Each document also keeps its own page size: merge a portrait A4 letter with a landscape slide deck and the final PDF will contain both shapes.
Bookmarks and form fields from different files can clash, because two documents may use the same field name. If the forms matter, check the merged file before you send it.
Limits and tips
There is no cap on the number of files, but each job accepts up to 50 MB in total and up to 50 pages per PDF. If one file is heavy because of scanned photos, run it through Compress PDF first.
When you are done, Keep working with this PDF lets you add page numbers or a password without uploading the file again.
Frequently asked questions
- How many PDFs can I merge at once?
- As many as you like, as long as the whole set stays under 50 MB per job.
- Can I reorder individual pages, not just files?
- Here you order whole documents. To move single pages, open the merged file in Organize PDF afterwards.
- Does merging reduce quality?
- No. Pages are copied as they are, without recompressing images or turning text into pictures.
- Are my documents stored on the server?
- No. They are processed only for this job and deleted when it finishes. They are never published.
- Do I need an account?
- No. The tool is free, supported by ads, and works without signing up.