Merge PDF Online Free — Combine PDFs in Right Order

Combine multiple PDFs in any order. Fast, private — files are deleted immediately after.

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Drop PDF files here

or click to browse · up to 20 files · max 100 MB each

How It Works

Upload

Select or drop your PDF files.

Arrange

Drag rows to set the merge order.

Merge

Click Merge and download instantly.

FAQ

Is there a file size limit?

Each PDF can be up to 100 MB. You can merge up to 20 files in one go.

Are my files stored on your servers?

No. Files are processed and immediately deleted — never stored or shared.

Can I merge password-protected PDFs?

We attempt to open encrypted PDFs, but password-protected files cannot be merged without the password.

Does the page order matter?

Yes. The merge order matches the list order. Drag rows to rearrange before merging.

Getting a Merge Right the First Time

Common merge jobs and their pitfalls

Merging is usually the last step before a deadline — a tender closing, a visa appointment, an admission cutoff. The mistakes are always the same, and all of them are avoidable:

Common merge job	What goes wrong	How to avoid it
Tender / procurement submission	Pages out of order, file rejected	Number your files 01-, 02-, 03- before uploading, then verify order in the preview
Visa application packet	Mixed orientations — sideways bank statements	Rotate pages first, then merge
University admission documents	Merged file exceeds the portal's size limit	Merge first, compress once at the end
Client invoice + contract bundle	Wrong version of a file included	Rename drafts clearly; merge only from a 'final' folder
Scanned multi-part documents	Duplicate or blank scan pages included	Delete blanks in a page editor before merging

Order is everything

Most merge tools sort files alphabetically or by upload time — not by your intent. That's how a cover letter ends up after the appendix. The reliable workflow: prefix filenames with numbers (01-cover.pdf, 02-proposal.pdf), drag to reorder after uploading, and scroll the preview once before downloading. If the pages inside one file are also shuffled, fix that first with the page reorder tool — merging won't rearrange pages within a document.

Merging doesn't compress

A merged PDF is roughly the sum of its parts — combine five 1 MB scans and you get a ~5 MB file, which most government portals will reject. The efficient order is: merge everything first, then run the result through the PDF compressor once. Compressing each file before merging wastes time and degrades quality twice. And if the portal wants only specific sections, extract those pages rather than submitting the full bundle — reviewers notice.