Free Online Tool

Merge PDF Files

Combine multiple PDFs into one document instantly.
No upload limits, no watermarks, 100% free & private.

Drop PDF files here

or click to browse • Supports 2 to 10+ files

No files selected yet. Add PDFs to start merging.

Processing...

PDF Merged Successfully!

Combined 3 files into 1 document

Arrange Order

Use arrow buttons to reorder files before merging. Top file becomes first page.

Privacy First

All processing happens in your browser. Files never leave your computer.

No Limits

Merge 2 files or 20. No restrictions on file size or number of pages.

Lightning Fast

Client-side merging means instant results, no uploading or waiting.

How to Use PDF Merger

Upload Your PDFs

Drag and drop your PDF files into the drop zone, or click the area to browse your computer. You can select multiple files at once by holding Ctrl (or Cmd on Mac) while clicking.

Drop files here or click to browse

Arrange Order (Important!)

Files are merged from top to bottom. Use the up and down arrow buttons to arrange the order. The file at the top will be the first pages of your merged PDF.

File at top = First pages • File at bottom = Last pages

Review Your List

Check that all files are in the correct order. You can remove any file by clicking the X button. File size is shown below each filename to help you identify them.

Review order • Check file sizes • Remove if needed

Merge & Download

Click the "Merge PDFs" button. The tool will process your files instantly in the browser. Once complete, click "Download Merged PDF" to save your combined file.

Your merged PDF will download automatically

Pro Tips

Files are numbered in the order they will appear in the final PDF
You can merge up to 50+ PDFs at once - there's no strict limit
If the download doesn't start automatically, check your browser's download bar
The merged file will be named "merged-document.pdf" by default