Quickly and securely split and merge PDFs entirely within your browser without any server uploads.
In modern society, PDFs are essential for communication in business and academia. While handling sensitive information like contracts or portfolios, we often need to merge or extract pages. However, conventional online editors usually upload your files to a server, raising concerns about privacy and data leaks.
This website was built to fundamentally eliminate these security concerns. We adopted a modern Client-side Processing approach using web technologies.
The key feature of this service is that not a single byte of your uploaded file is transmitted to an external server. All rendering, splitting, and merging happens purely within your browser's memory. This means the server operator can never see your documents, providing the safest environment for your sensitive files.
Beyond simple merging, we provide a powerful UI. Upon uploading, thumbnails are instantly generated. You can freely reorder pages with drag-and-drop and delete unwanted pages with a single click. Combining multiple PDFs and selecting exactly what you need feels as easy as organizing papers on a desk.
There is no need for expensive subscriptions or heavy software installations. As long as you have a web browser, you can access it on any PC, tablet, or smartphone. Without server upload times, it operates swiftly and is optimized even for lower-end devices.
A. Yes, you can be absolutely sure. Our service runs on a static web hosting environment that only delivers the website files (HTML, JS, CSS). The PDFs you choose are loaded strictly into your local memory via the browser's FileReader API. All processing is completed internally by JavaScript libraries.
A. Not at all. Instead of converting PDFs to images and rebuilding them, our service restructures the linking information while maintaining the exact data streams (Text, Vector, Image). Thus, the output retains the original resolution and text searchability perfectly.
A. Technically, our servers impose no limits. However, since your browser does all the work, performance depends on your device's RAM. Standard documents (tens to hundreds of MBs) process smoothly on most modern devices, but gigabyte-sized files might slow down your browser.
A. No, aside from the initial website load. When you click download, the file isn't fetched over the internet. Instead, the completed data in your browser's memory is directly saved to your device's storage (via Blob URL).