Merge PDF

Join PDF files and scans into one document, ready to send or print.

No quality loss
No watermark on downloads

or drop your file here

No Cap on File Count

Join two PDFs or dozens in one go. The only limit is size, not how many files.

A Bookmark per File

The merged PDF opens with a list of its files, each keeping its own bookmarks.

Then Password-Protect It

Lock the merged pack with a password in Protect PDF before you send it.

Three Steps to a Combined PDF

Combine PDFs online in three steps, no software to install, no account needed.

Upload your PDFs

Add two or more PDFs from your device. Up to 600MB on the free plan and 5GB on paid plans.

Arrange your files

Drag the files into order. Forgot one? Use the + between two files to add it.

Download the Result

Your newly merged PDF is ready to download immediately and auto-deleted after 15 min.

Bring Related Documents Together

Managing scattered files leads to lost data and frustrated clients. Here's where merging your documents pays off.

Client Billing & Invoices

Combine monthly invoices, expense receipts, and timesheets into a single, professional PDF payment request.

Academic Research

Compile downloaded journals, lecture notes, and drafts into one easy-to-navigate PDF study guide for exams.

Scanned Documents

Join pages scanned one at a time into a single file, in the right order, without rescanning anything.

HR & Onboarding

Merge offer letters, agreements, and company policy manuals into one simple, easy-to-read welcome packet.

Real Estate Packets

Organize property disclosures, inspection reports, and contracts into a unified, signature-ready master document.

Print Preparation

Save time and avoid missing pages at the printer. Join individual files into one main document and print once.

How PDF merging works

FynePDF merges by copying each document's pages, with their images, fonts and links, into one file in the order you set. Nothing is redrawn along the way, which is why a merged page looks exactly like the page it came from.

Order is preserved exactly

Files merge top to bottom in the order you arrange them. Page numbering runs continuously through the document.

Nothing is re-compressed

Unlike compression, merging never resamples images or rasterizes text. A 300 DPI scan stays 300 DPI.

What stays in the file

Every file brings its links, bookmarks and form fields, and they all still work.

After merging your PDF

Compress PDF

Merged files get large. Shrink yours by up to 90%.

Organize PDF Pages

Reorder or delete individual pages after merging.

Split PDF

Changed your mind? Separate the file back out.

Frequently Asked Questions

Is there a limit to how many PDFs I can combine at once?

No. Merge as many PDFs as you like in one go, up to a combined 600MB on the free plan and 5GB on Professional and Premium. There's no page limit either, so several hundred pages merge just as easily as two.

Will the merged PDF maintain the quality of the original files?

Yes. Merging is lossless: FynePDF never resamples images or rasterizes text. Images keep their original resolution, text stays vector-sharp and selectable, and a 300 DPI scan is still 300 DPI in the merged file. Only compression reduces quality; merging places existing pages into one file.

Is the Merge PDF tool free to use online?

Yes, FynePDF's Merge PDF tool is free and requires no sign-up. Free accounts merge up to 600MB, with 10 tasks and 600MB of processing a day. Professional and Premium both raise the limit to 5GB with unlimited daily merges.

Is it safe to use Merge PDF on FynePDF? Are my files secure?

File transfers use TLS encryption. Cloud-processed files are automatically deleted within 15 minutes after processing completes, unless you choose to save them to your Library. Documents are not used to train AI models. Read the Privacy Policy for storage and processing details.

Can I use the Merge PDF tool on Mac, Windows, or mobile?

Yes. FynePDF's PDF merger works directly from your browser, so it works on Mac, Windows, Linux, ChromeOS, iPhone and Android with no app to install. On mobile you can select multiple PDFs straight from Files on iOS or Downloads on Android.

Can I merge Word, JPG or Excel files into one PDF?

Convert them to PDF first with Image to PDF, Word to PDF or Excel to PDF, then combine the results here. Merging mixed formats in one step is on the roadmap.

Why is my merged PDF so large?

A merged PDF is roughly the sum of its source files, because merging doesn't compress anything. Five 8MB files produce a file near 40MB. Run the result through Compress PDF to cut it by up to 90%. Scanned documents shrink the most.

Can I reorder files or merge only some pages?

Yes. Drag files into any order, or use the + between two files to add one there. To drop single pages or mix pages across files, open them all in Organize PDF Pages.

Are bookmarks, links and form fields kept when merging?

Yes, from every file. Each file also gets a bookmark with its own name, so the merged PDF opens with a list of what's inside. Form fields that share a name are renamed, so each keeps its own answer.