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TinySolve

Merge PDF

Combine several PDFs into one file, in whatever order you choose.

Runs in your browser — your files are never uploaded

Drop your PDFs here

or

Two or more PDFs, up to 100 MB each. They are combined in the order shown, entirely on your device.

About the Merge PDF

Merging PDFs is the kind of task that appears at the worst moment — an application wants one file and you have six, a contract and its annexes need to travel together, a set of scanned receipts has to go in as a single attachment. The job itself is trivial; finding a tool that does it without an account, a watermark or an upload is the hard part.

This one runs entirely in your browser. The files are read into memory, combined, and handed back as a download, so nothing is transmitted to a server. That matters for exactly the documents people most often need to merge — contracts, bank statements, medical letters, identity paperwork — which are precisely the files you should not be uploading to a free website.

Order is the thing people get wrong, so it is made explicit. Each file is listed with its page count and can be moved up or down before you merge. Buttons are used rather than dragging, because dragging does not work on a phone and getting the order right is the entire point of the tool.

The page content itself is copied across untouched — same resolution, same fonts, same embedded images. Merging is not a conversion, so nothing is re-compressed and nothing degrades, and the resulting file is roughly the sum of the originals.

Files that cannot be opened are flagged as soon as you add them rather than at the moment you press Merge. A PDF that is genuinely password-protected cannot be merged without the password; one that merely declares an empty owner password — very common from office software — opens fine, the same way it does in any normal reader.

How to use the Merge PDF

  1. Add your PDFs

    Drag them in or browse for them. You can add more at any time, and the page count of each file is shown so you can check you have the right ones.

  2. Put them in order

    Use the up and down arrows next to each file. The number on the left is the position it will take in the finished document.

  3. Merge them

    Press the merge button. Everything happens on your device, so even a large set of files takes only a moment and nothing is uploaded.

  4. Download

    Save the combined file. Your original PDFs are untouched — the merged document is a new file.

Frequently asked questions

Are my PDFs uploaded to a server?
No. They are read into your browser's memory, combined there, and offered back as a download. No request is made and nothing is stored, which you can confirm by watching the network tab while you merge.
Does merging reduce the quality?
No. Merging copies each page across exactly as it was — same resolution, same fonts, same images. Nothing is re-compressed, so the combined file is roughly the sum of the originals in size and identical in appearance.
Is there a limit on the number or size of files?
There is no limit from us, because there is no server involved. The practical ceiling is your device's memory: the files are all held in RAM at once, so a phone will manage a few large documents where a laptop would handle many.
Can I merge a password-protected PDF?
Not if it genuinely requires a password to open — that file is encrypted and cannot be read without it. Many PDFs only carry an empty owner password restricting printing or editing, and those open normally here, just as they do in any standard reader.
How do I change the order after adding the files?
Each row has up and down arrows, and the number on the left shows where that file will land in the finished document. Reordering does not re-read the files, so it is instant however large they are.
Will bookmarks and form fields survive?
Page content, images and fonts are preserved exactly. Document-level features such as bookmarks, form fields and annotations may not carry across, because they belong to the original document structure rather than to the pages themselves.