Are my PDF files uploaded to a server when merging?

No. All PDF processing, reading, and merging happen locally in your browser memory using WebAssembly and client-side JavaScript. Your files never leave your device.

How do I change the page order of merged PDFs?

You can easily reorder your selected PDF files by clicking the up and down arrow buttons next to each file item in the list before clicking Merge.

Is there a limit on file size or number of PDFs?

You can merge multiple PDFs simultaneously. Browser memory is the only limit, but typical multi-document batches process instantly.

JavaScript is Required

Zapixal is a client-side application. It requires JavaScript to process images securely in your browser without uploading them to a server. Please enable JavaScript to use this tool.

Client-Side

Merge PDF Files Online (Free & Private)

Name: Zapixal - Merge PDF Online Free
Availability: InStock
Author: Zapixal

Combine multiple PDF documents into one single file securely in your browser. Zero cloud uploads, lightning-fast WebAssembly merging.

Document & PDF Suite6 Tools

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