# Merge PDF for e-commerce sellers

_Updated July 2026 · Arthize · https://arthize.com/for/ecommerce-sellers/merge-pdf_

Arthize lets e-commerce and retail sellers merge PDF files in a private workspace — free, with no watermark. Merging PDFs combines several documents — and any JPG or PNG pages — into one file losslessly, so text stays selectable and images stay sharp.

## Why e-commerce sellers merge PDF files

A seller merges a month of invoices into one file for the accountant, converts a supplier's PDF price list to Excel, and compresses the product catalogue for a marketplace upload.

**Built for invoices.** Whether it's invoices, packing slips, catalogues, Arthize's merge pdf keeps the work inside your private workspace. Order and customer data is confidential; private processing avoids leaking it to a free tool.

## What matters when you merge PDF files

A proper merge is lossless because it copies existing page objects instead of re-rendering them.

You can reorder individual pages, not just whole files, before merging.

Merging never adds a watermark, even on the free plan.

## How to merge PDF files

1. **Open the merge tool** — Sign in and open the Merge tool in your Arthize workspace.
2. **Add your files** — Add every PDF to combine; you can mix in JPG or PNG images, which become pages too.
3. **Put them in order** — Drag the files or individual pages into the exact order you want in the final document.
4. **Merge and download** — Click merge — Arthize rebuilds the page index into one PDF, then deletes the sources.

## FAQ

### How do e-commerce sellers merge PDF files for free?

Merging PDFs combines several documents — and any JPG or PNG pages — into one file losslessly, so text stays selectable and images stay sharp. On Arthize it's free with no watermark, and the file is deleted after the job — which is why e-commerce and retail sellers can use it for invoices without a confidentiality risk.

### Is it private to merge PDF files sensitive invoices?

Yes. Order and customer data is confidential; private processing avoids leaking it to a free tool. Files are processed inside your private Arthize workspace and deleted after the job.

### How do I merge PDF files into one for free?

Merging PDFs combines several documents — and any JPG or PNG pages — into one file losslessly, so text stays selectable and images stay sharp. On Arthize it's free with no watermark and processed privately.

### Will merging reduce the quality of my PDFs?

Merging PDFs combines several documents — and any JPG or PNG pages — into one file losslessly, so text stays selectable and images stay sharp. On Arthize it's free with no watermark and processed privately.