How do I merge PDF files online for free?

Use PDFVision's Merge tool to upload multiple PDF files. You can arrange them in order and click Merge. The entire process happens locally in your browser, ensuring 100% privacy.

How can I split a PDF into multiple pages?

Upload your PDF to PDFVision's Split tool, enter the page ranges (e.g., 1-3, 5), and click Extract. Your new PDF will be generated instantly without any server upload.

Is there a limit to the number of PDFs I can merge?

Because PDFVision runs locally on your device, there are no software-enforced limits. You can merge as many files as your device's memory can handle.

Are my files secure when merging or splitting?

Yes, 100% secure. Your files never leave your computer. All processing is done using a client-side engine (pdf-lib) inside your browser's security sandbox.

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Merge & Split PDF

The most flexible way to rearrange your documents. Combine multiple files or extract specific pages instantly with high precision.

Click or drop file

Upload multiple PDFs to combine

Direct Browser Processing

Client-Side Sequential Processing • 100% Private

Quick Guide

Using
Merge & Split

Everything you need to know about Merge & Split with PDFVision.

Key Benefits

Rearrange or combine documents in seconds.
Extract specific page ranges with precision.
Fast, offline-first processing using WASM.
Completely private – your files never leave your browser.

4 Easy Steps

Upload one or more PDF files from your device.

Choose between Merge Mode (combine) or Split Mode (extract).

For merging, arrange your files in the desired order.

For splitting, specify the page ranges you want to extract.

Click the process button and download your new PDF.

How to split and merge pdf online safely

When you need a reliable pdf split and merge online service, security should be your top priority. Most traditional online tools require you to upload your sensitive documents to a remote server for processing. PDFVision changes the game by bringing the processing to you. Our online split and merge pdf tool runs entirely in your browser using pdf-lib, meaning your files never leave your local environment.

Whether you're looking for a pdf split and merge free tool for monthly reports, or need to merge and split pdf online for creative portfolios, PDFVision ensures that your data remains private. This pdf splitter and merger free delivers professional-grade results in seconds, all without any server uploads.

The power of an online pdf splitter and merger

Sometimes you only need a specific section of a large PDF, or you need to know how to separate combined pdf files quickly. Our pdf merge and split online tool allows you to extract exactly what you need with surgical precision. By defining custom page ranges—like "1-5, 10, 15-20"—you can create perfectly tailored documents.

Because we use client-side technology, our pdf merge and split free tool processes even large files quickly. There's no waiting for uploads or downloads from a distant server. You simply select your range or files, process, and save the result directly to your device. It's the most efficient online pdf splitter and merger for modern professionals.

Why choose PDFVision for your PDF tasks?

PDFVision was built with a "Privacy-First" mission. We believe that professional PDF tools shouldn't come at the cost of your data security. By choosing our online split and merge pdf model, you benefit from:

Zero Server Uploads: Your sensitive data stays on your machine.
Fast Performance: No network latency, no upload queues.
Unlimited Usage: Use our pdf splitter and merger free as much as you need.
No Account Needed: Start merging or splitting instantly without signing up.

Questions & Answers

Common Questions

Find quick answers about how PDFVision works and keeps your files safe.

How do I specify page ranges for splitting?

You can use commas to separate individual pages or dashes for ranges. For example: '1, 3, 5-8' will extract pages 1, 3, and every page from 5 to 8.

Is there a limit to how many PDFs I can merge?

Since the tool runs on your local hardware, there is no hard software limit. However, merging dozens of very large files may be limited by your device's available memory.

Can I reorder files before merging?

In this version, files are merged in the order they were uploaded. If you need a specific order, please upload them one by one in that sequence.