PDF merge

Merge PDF

Upload multiple PDF files, reorder them, and combine them into one PDF.

Upload PDFs

Choose the files you want to merge together.

Click or drag & drop

Drop PDFs here or click to choose files from your device.

Files

Pages

Input size

0 B

Reorder and review

Move files up or down before merging.

No PDFs added yet.

Merge and download

Create the combined PDF and download it immediately.

Upload PDF files to merge.

Reorder files before merging. Invalid PDFs are still listed so you can remove them.

PixTrimIO keeps PDF and image workflows fast, privacy-friendly, and browser-based. Privacy-first PDF and image tools that run entirely in your browser. Compress, merge, convert, crop, OCR, and edit files online for free without uploading.

Frequently asked questions

How many PDFs can I merge at once?

You can merge as many PDFs as you need. For very large batches, performance depends on your device.

Can I reorder the files before merging?

Yes. After uploading, drag and drop the files to set the order you want before merging.

Are my files uploaded to a server?

No. Merging runs entirely securely in your browser without uploading. Your files never leave your device.

What is the output file format?

The output is a single PDF file containing all the pages from the files you merged, in the order you specified.

How to merge PDF files online for free

Combine multiple PDF files into one document securely in your browser without uploading.

Upload your PDFs — Click the upload area or drag and drop multiple PDF files onto the page.

Reorder if needed — Drag the file thumbnails to arrange them in the order you want in the final document.

Merge — Click Merge PDF. All processing happens locally securely in your browser without uploading.

Download — Download the merged PDF to your device.