Absolutely. We use 256-bit SSL encryption to process your files. Additionally, our system is designed to automatically and permanently delete all uploaded files within 60 minutes.
You can currently merge up to 40 PDF files in a single session. If you have more files, you can merge them in batches. The total size limit is 100MB per session.
No. Our merging tool preserves the original quality of your documents. It simply stitches the pages together without compressing images or altering text resolution.
Yes! Once you upload your files, you can drag and drop them to rearrange the order. The top-most file in the list will be the first page of your new merged PDF document.
Yes. PDF AI is a web-based tool, meaning it works seamlessly on any operating system (Windows, Mac, Linux) and any device (iPhone, Android, Tablet).
Yes. You can mix Portrait (vertical) and Landscape (horizontal) pages in the same document. The final PDF will keep the original orientation of each individual page.
Yes, PDF AI is 100% free for standard use. We do not require any credit card details or account registration.