Oxidize.
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Merge PDF

Combine multiple PDF files into one. Drag and drop your files to start merging in your browser.

Features

What you get with Merge PDF

Simple drag and drop to order files

No file size limits or daily caps

See visual thumbnails to reorder pages

Files stay on your device for total privacy

Works on all browsers and mobile phones

Keeps original fonts and formatting perfect

No watermarks added to your files

Download your merged PDF instantly

How to use

Step-by-step guide

01

Upload your PDFs

Click the file picker or drag many PDF files into the box. Add all the files you want to combine.

02

Reorder files

Drag files up or down to set the order. The top file will be the first page in your new PDF.

03

Merge and download

Click the merge button. Your new PDF is ready to download in seconds.

Use cases

Common ways to use Merge PDF

Merge monthly reports

Combine many small reports into one big document to share easily.

Build project proposals

Put cover pages and technical details into one professional file.

Organize school work

Merge research papers and notes into one study guide.

Create manuals

Join separate modules into one complete handbook.

FAQ

Frequently asked questions

Is it safe to merge PDF files here?
Yes. Oxidize works in your browser. Your files never leave your computer, so they stay private.
How many PDFs can I merge?
You can merge as many files as you like. There is no limit on file count.
Will it lower the quality of my PDF?
No. The tool copies pages exactly. Your text and images will look the same as the original.
Can I merge protected PDFs?
Yes. You can use our unlock tool first, then add them to the merge list.
Does this work on mobile?
Yes. It works on any modern phone, tablet, or computer.