PDFThings

Merge PDF Online

Combine multiple PDF files into one document right in your browser. Everything runs through a secure, encrypted pipeline — no desktop app, no uploads to a third-party server beyond ours, and no account required.

Drop files here, or browse

PDF,APPLICATION/PDF

Merging PDFs online is the fastest way to combine scanned contracts, exported documents, or separate chapter files into a single, shareable file. Unlike desktop tools that need an install, an online merger works from any device with a browser and keeps your workflow moving.

Our online merger accepts up to 20 PDF files at once, lets you drop them in any order, and produces a clean combined document in seconds. Because files are processed and auto-deleted within 12 hours, you don't have to worry about copies lingering on our servers.

Why use this merger

No installation

Works entirely in your browser. Nothing to download, update, or configure on your computer or phone.

Order it your way

Drag files into the exact order you need before merging — no rearranging after the fact.

Handles many files

Combine up to 20 PDFs in a single batch, from quick two-page merges to larger document packs.

Private by default

Files are transferred over an encrypted connection and automatically deleted within 12 hours.

How to merge pdf online

  1. 1

    Upload your PDFs

    Click the upload area or drag up to 20 PDF files into the window. The order shown is the order they'll appear in the merged file.

  2. 2

    Reorder if needed

    Drag any file to reposition it. Make sure the most important pages come first before you combine.

  3. 3

    Merge and download

    Click Merge PDFs, wait a few seconds for processing, then download the combined file to your device.

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Frequently Asked Questions

Is merging PDFs online safe?
Yes. Files are uploaded over an encrypted connection and automatically deleted from our servers within 12 hours. No one else can access your documents.
Do I need to create an account?
No. The online merger works without registration. Upload, merge, and download — that's it.
What is the maximum number of files I can merge?
You can merge up to 20 PDF files in a single job, each reasonably sized for browser upload.