Merge PDF
Use Merge PDF free online. Drag your file in, get the result back, and keep everything on your own device.
Merge a PDF
Drop your files here or click to browse. Processed locally in your browser – nothing leaves your device.
Runs in your browser – nothing to install
Files auto-deleted from our servers within 60 minutes
Free to use with no watermark or signup
Works on desktop, tablet and phone
How it works
Three simple steps
Upload your file
Apply the merge pdf action
Download the result
Private by default
Files are encrypted in transit and deleted within 60 minutes.
Fast
Most jobs finish in under 10 seconds. No queueing.
No signup on free tier
5 documents per day, no credit card required.
FAQ
Frequently asked questions
How do I merge pdf online?+
Upload your file above, run Merge PDF, and download the result. It happens in your browser – no software to install and no account needed.
Is the Merge PDF tool free?+
Yes. Merge PDF is free on the StandardsPDF free tier, with no watermark and no signup. Pro raises the file-size and daily limits.
Are my files private when I merge pdf?+
Yes. Files you merge pdf are processed in isolated workers, never shared, and permanently deleted from our servers within 60 minutes.
Do I need an account to merge pdf?+
No account is needed to merge pdf on the free tier – up to 5 documents per day, no credit card required.
Can I merge pdf on my phone?+
Yes – the Merge PDF tool is fully responsive and works in modern browsers on iOS, Android and iPadOS.
Will I lose any quality when I merge pdf?+
No. Merge PDF preserves the structure and quality of your original file wherever the output format allows.
What is the maximum file size for Merge PDF?+
You can merge pdf files up to 100 MB on the free tier and 2 GB on Pro. Larger files can be split first or handled on the Pro plan.