Merge PDF Online

Combine multiple PDFs into one document, in the order you choose.

Accepts PDFOutputs PDFUp to 20 filesNo sign-up required

Drag files here, or click to browseSupports PDF · up to 20 files · 50MB per file

How it works

1. Upload your file

Drag and drop or choose a PDF file from your device. You can add up to 20 files at once. Everything is checked against its real file type before processing starts.

2. We process it

Your file runs through an isolated job dedicated to Merge PDF, with clear progress so you always know what stage it's at.

3. Download the result

Get your finished PDF file with one click. The original upload and the result are deleted automatically afterward.

What is Merge PDF?

Merge PDF combines two or more PDF files into one single PDF document. You choose the order, upload up to 20 files at once, and download one file with every page in sequence — no software to install and no account needed.

Common uses

Job and visa applications. Put your resume, ID proof and certificates into one file so a portal that accepts a single upload is happy.
Invoices and statements. Join a month of invoices or bank statements into one PDF for your accountant.
Study notes and assignments. Stitch chapters or scanned worksheets into a single, ordered document.
Contracts with attachments. Keep the agreement and its annexures together so nothing gets separated in email.

Merge PDF at a glance
Input	PDF files
Output	One PDF
Files per merge	Up to 20
Size limit	50 MB per file
Page order	Exactly as you arrange the files
Quality	Pages are moved, not re-rendered or re-compressed
Sign-up	Not required

Tips for best results

Arrange the files in the final order before you press merge — it is quicker than reordering pages afterward.
If the merged file is too large to email, run it through Compress PDF next.
Need only some pages from a file? Use Extract Pages first, then merge.
Password-protected PDFs must be unlocked before they can be merged.

Guides for this tool

Your file stays private

Merge PDF runs in an isolated processing job. Your upload and the generated result are deleted automatically after your download window ends — we don't keep copies, and download links are random, single-purpose, and expire.

Frequently asked questions

How do I merge PDF files into one?

Open Merge PDF, add your files, drag them into the order you want, and click Merge. Your combined PDF is ready to download in a few seconds.

Is there a limit on how many PDFs I can merge?

You can merge up to 20 PDF files in one go, with up to 50 MB per file.

Will merging reduce the quality of my PDF?

No. Pages are copied into the new document as they are — text stays selectable and images are not re-compressed.

Can I merge PDFs on my phone?

Yes. Merge PDF works in a mobile browser on iPhone and Android, so there is no app to download.

Can I change the order of the files after uploading?

Yes. Drag the files up or down in the list before you merge.

Is it safe to merge confidential PDFs online?

Files are processed in an isolated job and deleted automatically after your download window ends. We do not keep copies or read your documents.

Do I need to sign up to use Merge PDF?

No — this tool works without creating an account. There is no sign-up option at all right now.

What file types does Merge PDF accept?

Merge PDF accepts PDF files and produces a PDF result, up to 20 files per job.

Will my formatting or content be preserved?

Yes — page order, orientation, and content are preserved exactly. Nothing is re-rendered or re-compressed; pages are moved, not redrawn.

What happens to my file afterward?

Your file is processed in an isolated job and deleted automatically, along with the result, once your download window ends.