How to Merge PDF Files Online for Free

Merging PDF files is a common task — combining scanned documents, assembling reports, or creating portfolios. Most online PDF mergers upload your files to their servers, which is a privacy risk for sensitive documents. AHX offers a free PDF merger that runs entirely in your browser.

How to merge PDF files

• • Go to the AHX PDF Merger (link below)
• • Drag and drop your PDF files or click to browse
• • Reorder files using the up/down arrows
• • Remove any files you don't want by clicking X
• • Click "Merge N PDFs into one"
• • The merged PDF downloads automatically

Why use a browser-based PDF merger?

• • Privacy: Your documents never leave your device
• • Speed: No upload/download time — instant processing
• • Security: No risk of your documents being stored on a server
• • Free: No signup, no watermark, no limits
• • Offline: Works without internet after the page loads

The AHX PDF Merger uses pdf-lib, a JavaScript library that manipulates PDFs directly in the browser. The library is loaded only when you click Merge, so it doesn't slow down other pages.

Other PDF tools

• • PDF Splitter: Split a PDF into individual pages or custom ranges
• • Image to PDF: Convert JPG/PNG images to a single PDF
• • PDF to JPG: Convert each PDF page to a JPG image