PDF Merge & Split

What is PDF Merge & Split?

Merge PDF files online for free or split a PDF into separate pages - all without uploading anything to a server.

Unlike most PDF tools that send your documents to remote servers for processing, this tool runs entirely in your browser using the pdf-lib library. Your PDFs never leave your device, making it safe for contracts, invoices, tax forms, and any confidential documents. Upload multiple files and drag to rearrange the order for merging, or select specific page ranges to extract when splitting. The output downloads as a standard PDF that works everywhere. No signup, no watermarks, no file size tricks - just a straightforward PDF merger and splitter that respects your privacy.

Need this in your code, not in a tab?

This tool merges and splits PDFs entirely in your browser, which is the right answer when a person is clicking the button. It is the wrong answer for invoices after checkout, reports on a schedule, or certificates generated per user, because those run without anyone watching.

For that, you want a rendering engine behind an API. PDFPipe is built by the same author as this site: send HTML or a URL, get a print-grade PDF back in about a second. Free for 100 documents a month, no card required.

curl -X POST https://api.pdfpipe.xyz/v1/pdf/merge \
  -H "Authorization: Bearer pp_live_..." \
  -F "files=@invoice.pdf" -F "files=@terms.pdf" \
  --output combined.pdf

Not sure which approach fits? Browser tools, headless browsers, and PDF APIs compared.