Local processing
Images stay on your device, which keeps the experience fast and privacy friendly.
Merge PDF Files Online
Merge PDF files into one clean document without uploading them.
Your preview will appear here.
Upload two or more PDF files, arrange them, and merge them into one PDF.
How It Helps
Built for fast image workflows.
One PDF output
Arrange multiple PDF files and merge them into a single document.
SEO focused
Smaller images can improve loading speed, Core Web Vitals, and search performance.
Modern formats
Use WebP and AVIF for lean assets in modern browsers and web apps.
Why Use It
Merge PDF for faster websites.
Large images slow down landing pages, product pages, and editorial content. This tool helps create lighter assets for web publishing, email, and design handoff.
Local
browser processing
Batch
multi-file workflow
single file output
Related Tools
Keep optimizing.
Rotate PDF
Rotate PDF pages in your browser and download clean PDF files without uploading documents.
Split PDF
Split PDF files into separate page PDFs in your browser, then download everything as one ZIP.
Extract PDF Pages
Extract selected pages from a PDF in your browser and download a clean new PDF.
Reorder PDF Pages
Reorder pages inside a PDF with drag and drop, then download the new PDF locally.
FAQ
Questions, answered.
Are PDF files uploaded? +
No. PDF merging happens in your browser, so your files stay on your device.
Can I change the PDF order? +
Yes. Upload multiple PDF files, drag them into the right order, remove files you do not need, then merge.
Will pages be preserved? +
Yes. VizionKit copies pages from each PDF into one combined PDF in the order you choose.