Merge PDF
Drag, drop, reorder and merge any number of PDF files into a single, neatly organised PDF.
Drop your files here
or click to browse — processed privately in your browser
Add two or more PDFs to merge.
Why use this Merge PDF tool?
Fast
Most conversions finish in seconds, even for large files.
Private
Files are processed in your browser whenever possible.
Unlimited
No daily caps, no watermarks, no account needed.
How to use Merge PDF
- 1
Upload your file by drag-and-drop or click to browse.
- 2
Let The Flow Converter process your merge pdf request — it only takes seconds.
- 3
Download the result — no signup, no watermark, ever.
Related tools
All toolsMerge PDF — FAQ
Is Merge PDF really free?+
Yes — Merge PDF is 100% free on The Flow Converter. No signup, no credit card, no daily limits and no watermarks added to your output.
Is it safe to use Merge PDF online?+
Absolutely. Files are processed in your browser whenever possible. When server processing is needed, uploads are encrypted in transit and automatically deleted shortly after conversion.
How long does Merge PDF take?+
Most files finish in just a few seconds. Larger documents (50+ pages) may take up to a minute depending on your connection.
Does Merge PDF work on mobile?+
Yes — every tool on The Flow Converter works on phones, tablets, Windows, macOS, Linux and Chromebook. All you need is a modern web browser.
Do I need to install anything to use Merge PDF?+
No installation required. Drag, drop, reorder and merge any number of PDF files into a single, neatly organised PDF.