PDF Tools

Merge PDF

Combine multiple PDF files into one — processed in your browser, no server uploads

Merge PDFs

Combine multiple PDF files into one. Arrange files in any order you want.

Split PDF

Split a PDF by page ranges. Specify multiple ranges at once.

Completely Private

All processing happens in your browser. PDFs are never sent to a server.

How It Works

Process your PDFs in 3 simple steps

1

Upload PDF

Drag & drop or select the PDF files you want to process.

2

Merge or Split

Use the Merge tab to combine PDFs, or the Split tab to specify page ranges.

3

Download

Download your processed PDF. Instant processing with no server uploads.

Frequently Asked Questions

Find answers to your questions

Are PDFs sent to a server?
No. All PDF processing happens 100% in your browser using the pdf-lib library.
Is there a file size limit?
No server-imposed limit, but very large PDFs (over 100MB) may take longer depending on your device's memory.
Can I change the file order when merging?
Files are merged in the order they're uploaded. Upload them in your desired order.
Can I process password-protected PDFs?
Password-protected PDFs cannot be processed. Please unlock the PDF first.