Many upload forms accept only one PDF. A job portal wants your cover letter, CV and certificates in one file. An expense claim wants all your receipts together. So you need to merge PDF files: join several PDFs into one, in the right order.
This guide shows how to do that for free in your browser with our PDF Merger. It also explains what is kept after a merge, what is lost, and how to fix the most common problems.
When Merging PDFs Helps
- Job applications: many employers ask for one file. Follow the order they ask for. If they give none, a common order is cover letter, CV, then certificates.
- Visa, university and government portals: a section such as “supporting documents” often takes only one PDF. Put the pages in the order the checklist lists them.
- School assignments: join a cover page, the main work and an appendix into one submission.
- Receipts and invoices: if you scanned each receipt as its own PDF, merge them into one file for your records or an expense claim.
- Scanned pages: some scanner apps save each page as a separate PDF. Merging puts them back together as one document.
How to Merge PDF Files for Free
- Add your PDFs. Open the PDF Merger. Drop your files on the box, or click the box to pick them. You can add files in several rounds. Each new file goes to the end of the list.
- Put the files in order. Each file shows a position number. Files are merged from top to bottom, so file 1 comes first. Press ↑ or ↓ to move a file one place. On a computer you can also drag a row to a new place. On most phones dragging does not work, so use the arrows.
- Remove what you do not need. Click ✕ next to a file to take it out.
- Click Merge PDFs. The button works once the list has at least two files. A progress bar fills as each file is added.
- Save the result. The new file downloads as
merged.pdf. Your original files are not changed.
There is no fixed limit on the number of files or pages, and no watermark is added. The real limit is your device's memory, because every file is loaded in your browser. On a phone, very large files can make the page slow or fail. If that happens, close other tabs or merge on a computer.
What Is Kept and What Is Lost
The tool uses the pdf-lib library. It makes a new, empty PDF and copies every page of every file into it. The pages are copied, not redrawn, so text and images keep their quality. But some parts of a PDF live outside the pages, and those are not copied.
| Part of the PDF | After merging |
|---|---|
| Text, fonts, images, scans | Kept as they are |
| Page size and rotation | Kept. An A4 page stays A4, and a landscape page stays landscape. |
| Links to websites | Usually still work |
| Links that jump to another page, such as a table of contents | May stop working. Test them. |
| Bookmarks (the side panel outline) | Not copied |
| Fillable form fields | May look right but may no longer be fillable |
| Digital signatures | Not valid in the new file |
So fill in forms before you merge. Send a signed document on its own, not inside a merged file.
Tips for a Clean Merged PDF
Check the order before you merge
When you pick many files at once, the file picker decides their first order, not you. Many systems sort them by name, but not all. Look at the position numbers before you click Merge. If you merge the same set often, start each file name with a number, such as 01-cover-letter.pdf and 02-cv.pdf.
Take out unwanted pages first
The merger always adds every page of every file. If you need only some pages from a long document, first take them out with Split PDF. Then merge the smaller file.
Compress after merging if the file is too big
The merged file is roughly the size of all your files added together. Scanned pages are often the biggest part. If a portal or email rejects the file, run it through our PDF compressor. It works best on scanned pages. A PDF of typed text may not get smaller. Note that our compressor turns each page into an image, so text can no longer be selected, and links and form fields stop working. Keep your merged original if you need those.
Expect mixed page sizes
A US Letter page and an A4 page will sit next to each other at their own sizes. If you print the file, choose a print setting that scales each page to fit the paper.
Open the result and rename it
Scroll through the merged file once. Check the order, and check that no page is missing. Then rename merged.pdf to something clear, such as Sharma-Priya-application.pdf.
Password-Protected PDFs
The tool cannot open an encrypted PDF. This includes some files that open without a password but block printing or editing. If one file in the list is encrypted, the whole merge stops. A message under the list names that file, and nothing is downloaded.
To fix it, open that file in a PDF reader and enter the password. Then save or print it to a new PDF without a password, and add the new copy instead. Only do this for files you own or have permission to change. A damaged file can also stop the merge. The message names that file too.
Can I Merge PDFs on My Phone?
Yes. The merger works in current phone browsers such as Safari and Chrome, and there is no app to install. Use the ↑ and ↓ buttons to set the order, because dragging rows does not work on most phones. Very large files use a lot of memory, so a big merge may work better on a computer.
Is It Safe to Merge PDFs Online?
Many online PDF tools process your files on their own servers. That can be fine, but it means a copy of your document leaves your device.
Our merger works differently. The pdf-lib library runs inside your browser and builds the merged file on your device.
- No upload: your PDFs are not sent to FreeToolPoint or anyone else.
- Nothing kept: when you close or refresh the page, the files are gone from the tool.
- No account: you do not need to sign up or give an email address.
This makes it a good fit for contracts, bank statements and ID scans that you would rather not upload.
Summary
Add your files, set the order with the arrows or by dragging, and click Merge PDFs. Check the result before you send it. Remember that bookmarks are not kept, forms may stop working, and encrypted files must be unlocked first.