Merge PDF

Add two or more PDFs and merge them into a single file. Drag to reorder.

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Drag PDFs here or click to select

Minimum 2 PDF files

How it works

1

Add your PDFs

Select two or more PDF files you want to combine. You can add as many as you need.

2

Reorder if needed

Drag the files to set the page order in the final merged document.

3

Download the merged PDF

Get a single PDF file with all documents combined, ready to share or print.

Merging PDFs is useful in dozens of everyday situations: combining contract pages sent separately, bringing together different sections of a report, assembling a portfolio from multiple documents, or simply organizing related files into a single PDF for email delivery.

The result keeps all original pages in the order you defined, with formatting, fonts, and images intact. There is no limit on the number of files per operation, you can merge as many PDFs as you need at once, up to 20 files per batch.

Unlike many free tools, there is no daily quota here. You can merge PDFs as many times as you need, on the same day, without creating an account or subscribing to a paid plan. If the source files have different page sizes, say, one PDF in A4 and another in US Letter, each page keeps its original size in the final file, with no forced resizing that would distort the content.

Technical details

Engine
Gotenberg (native PDF merge)
Accepted format
PDF
Minimum files
2
Max per batch
20 files
Order
Set by you, by dragging files
Max size
50 MB per file

Frequently asked questions

How many PDFs can I merge at once?â–¾

Up to 20 files per operation. There is no total size limit, as long as each individual file does not exceed 50 MB.

Can I reorder the files before merging?â–¾

Yes. After adding the PDFs, you can drag them to set the order they will appear in the final document.

Are the files saved on the server after merging?â–¾

No. Files are processed in memory and discarded immediately after download. No document is saved to disk or associated with your account.

Can I merge password-protected PDFs?â–¾

No. Password-protected PDFs need to have the protection removed before they can be merged.

Is the page order within each original PDF preserved?â–¾

Yes. Only the order between files is set by you when you drag them; pages within each PDF keep their original sequence.