How many PDFs can I merge at once?

Up to 20 files in one go, and each file can be 100MB. Need to merge more? Just do it in batches - merge 20, then merge those results with another batch.

Will the quality get worse when I combine them?

Nope. Everything stays exactly as it was. Text looks the same, images are still sharp, formatting doesn't change. We just stick the files together without messing with the content.

Can I change the order before merging?

Yeah, after you upload, you'll see all your files. Just drag them around to put them in whatever order you want. The final PDF will match that order.

Is this safe to use with private documents?

Everything's encrypted when you upload. We process files on secure servers and delete both your originals and the merged file after an hour. Nobody can see your documents.

Do I need to install anything?

No. Works right in your browser on any device. Phone, tablet, laptop, whatever. No downloads, no apps, no software.

Merge PDF Files Online Free

Combine multiple PDF documents into one file. Fast, easy, and completely free on SmallPDF.us

Select PDF Files to Merge

Drag and drop your files or click to browse

PDF Format

Secure

Instant

Up to 100MB per file | 20 files maximum

Why Use Our PDF Merger

Combining PDFs shouldn't be complicated. We made it as simple as possible.

Dead Simple to Use

Upload your PDFs, drag them into the order you want, click merge. That's it. No complicated settings or confusing options to figure out.

Nothing Gets Lost

Text stays sharp, images stay clear, links keep working, formatting stays perfect. We combine the files without touching the quality of anything inside them.

Happens Fast

Even if you're merging 20 big files, it only takes a few seconds. Upload, arrange, merge, download. The whole thing's done before you finish your coffee.

Your Files Stay Private

Everything's encrypted in transit. We process on secure servers and delete your files after an hour. Nobody can access your documents except you.

Works on Everything

Phone, tablet, laptop, desktop. Windows, Mac, Android, iPhone. If you've got a browser, you can merge PDFs. No app needed.

Actually Free

No trial that expires, no premium features locked away, no hidden charges. This is the whole tool, completely free, forever.

Three Quick Steps

Merge your PDFs in under a minute

Upload Files

Select at least 2 PDF files. You can grab them all at once or add them one by one.

Arrange Order

Drag the files around to put them in whatever order you want. The merged PDF will match this sequence.

Merge & Download

Hit the merge button, wait a couple seconds, then download your combined PDF. Done.

When You Need to Merge PDFs

Instead of sending five separate files, send one. People love it.

Work Stuff

Combine invoices from the whole month into one file
Send complete proposals with all the supporting documents attached
Put together training manuals from separate sections
Bundle contracts and agreements with their amendments

Personal Use

Submit job applications with resume, cover letter, and references together
Keep all your tax documents and receipts in one organized file
Combine travel confirmations and tickets for your trip
Put together study materials and notes for easier reference

Common Questions

Quick answers about merging PDFs

Why Merge PDFs Together

Multiple PDF files are annoying to deal with. You've got to send them all separately, keep track of which one is which, and hope the person on the other end opens them in the right order. One merged file solves all that.

Think about sending a project proposal. Without merging, you're attaching the main proposal, then the budget spreadsheet as PDF, then the timeline, then maybe some references. That's four files minimum. With merging? One file. Everything's in order, nothing gets lost, looks way more professional.

Who Uses This

Office workers combine monthly reports. Students merge research papers with citations. Freelancers bundle invoices with contracts. Real estate agents put together listing documents. Lawyers assemble case files. Anyone who deals with multiple PDFs regularly ends up needing to merge them at some point.

Ready to Merge Your PDFs?

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