Merge PDF - 100% Free Online Tool
Need to combine multiple PDF documents into one cohesive file? Our Merge PDF tool joins any number of PDFs while preserving every detail — fonts, images, hyperlinks, form fields, and page layout — exactly as they appeared in the originals. Whether you are compiling a monthly report from department submissions, combining scanned contracts into a single dossier, or assembling a multi-chapter document, the result is a seamless, professional PDF ready to share or archive.
Upload files in any order, then drag to rearrange them before merging. The tool processes everything server-side on our Hetzner infrastructure and automatically deletes your files within one hour. Supports up to 20 files per merge, each up to 100MB. Works on Windows, Mac, Linux, iOS, and Android — no software installation ever required.
Key features: Preserves all formatting and hyperlinks • Drag-and-drop reordering • Up to 20 files per merge • 256-bit SSL encryption • Files deleted automatically after 1 hour • No watermarks or registration
Upload Files
Drag & drop or select files
Configure
Set your preferences
Download
Get your file instantly
Step 1: Upload Your Files
Supports: PDF • Max file size: 100MB • Unlimited files
Drag & Drop Files Here
or click to browse
Processing your files
0%Preparing your files...
Success! Your file is ready
Click the download button below to save your file
How to Merge PDF Online — Step by Step
Complete in under 2 minutes. No software, no registration, 100% free.
Upload your PDF files
Click the upload area or drag and drop multiple PDF files. Upload up to 20 files at once, each up to 100MB.
Arrange the merge order
Drag the uploaded files to set the exact order they should appear in the merged PDF.
Click Merge PDF
Hit the Merge button. The tool combines all files into one seamless PDF in seconds.
Download your merged PDF
Click Download to save your combined PDF. Your files are deleted from our servers within 1 hour.
Frequently Asked Questions About Merge PDF
Everything you need to know about our Merge PDF tool
Yes, completely free. Our Merge PDF tool has no hidden costs, no watermarks, and no registration requirement. You can process as many files as you need, each up to 100MB, at no charge. We believe professional PDF tools should be accessible to everyone — students, freelancers, and businesses alike.
Your files are fully protected. All uploads and downloads use 256-bit SSL/TLS encryption during transfer. Processing happens on our isolated Hetzner server infrastructure in Germany — your file is never shared, analysed for commercial purposes, or stored longer than necessary. Every uploaded and processed file is automatically and permanently deleted within one hour of processing.
Supported file types: This tool accepts PDF files up to 100MB each. For files larger than 100MB, use our Compress PDF tool first.
Portable Document Format
Yes — works on any device. The interface is fully responsive and tested on desktop, tablet, and mobile. Touch-friendly upload areas, drag-and-drop support on desktop, and mobile-optimised buttons mean you get the same experience whether you are on a MacBook, an iPad, or an Android phone. No app download is ever required — open your browser and go.
Up to 20 files per merge, no page limit. Each individual file can be up to 100MB. There is no cap on the total number of pages in the merged output — you can combine a 500-page document with a 300-page document and the result will be a single 800-page PDF. Drag the uploaded files into your preferred order before clicking Merge to control the final page sequence precisely.
Complete Your PDF Workflow
Discover tools that work perfectly with Merge PDF
Before Merge PDF
Prepare your files with these tools
You're Here
Merge PDF
After Merge PDF
Continue your workflow with these tools
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PDFs processed securely and deleted automatically
Files encrypted in transit, never stored permanently
No account needed, no watermarks, no limits
Your files are permanently deleted within 1 hour
Your Security is Our Priority
SSL Secured
256-bit encryption
GDPR Compliant
Privacy first approach
Auto Delete
Files deleted in 1 hour
No Storage
We don't keep your files