Merge PDF Files
Combine multiple PDF documents into one securely.
Click to Upload or Drag & Drop PDFs
Files are processed locally (Privacy Friendly)
Why Have 5 Files When You Can Have 1?
Dealing with multiple PDF files can be messy. Whether you are a student submitting an assignment made of three different parts, or a professional combining invoices for an expense report, keeping track of separate files is a hassle.
The ToolOnWeb Merge PDF Tool solves this instantly. It allows you to take any number of PDF documents and stitch them together into a single, organized file.
Privacy First: Your Files Stay With You
Most “free” online PDF mergers require you to upload your documents to a remote server. This means your private contracts, medical records, or bank statements are traveling across the internet and being stored on someone else’s computer.
We believe in Zero-Knowledge Privacy.
- Client-Side Processing: We use advanced browser technology (
pdf-lib) to merge your files right on your device. - No Server Uploads: Your files are processed by your own computer’s memory. We never see them, and they never leave your browser.
- Instant Speed: Since there is no upload or download time, even large files are merged in seconds.
How to Combine PDF Files
- Select Files: Drag and drop your PDF documents into the upload box, or click to select them from your computer.
- Reorder: Privacy doesn’t mean sacrificing features. Use the â–² â–¼ arrows to rearrange your files into the perfect order.
- Merge: Click the “Combine Files” button.
- Download: Your new, single PDF document will be ready instantly.
Frequently Asked Questions
Is there a limit on how many files I can merge?
We do not set a hard limit. You can combine 2, 10, or even 20 files at once. The only limit is your device’s memory, as the processing happens locally.
Can I rearrange the files after uploading?
Yes! Once your files are in the list, simply use the Up/Down arrows to change their order before you hit the “Combine” button.
Does this work on Mac and Windows?
Yes, it works on any operating system (Windows, Mac, Linux) and any modern browser (Chrome, Safari, Edge, Firefox). You can even use it on your iPhone or Android phone.