按大小拆分

You set a maximum size limit, and the tool analyzes your PDF and divides it at sensible points so each output file stays under that limit. Upload your document, choose your target size, and download the resulting smaller files.

You can specify your maximum in KB, MB, or GB, giving precise control over output sizes. This makes it easy to match email attachment caps, cloud storage restrictions, or any platform's specific file-size requirement for your split files.

Yes. After splitting, you can grab each resulting file individually or download them together as a single ZIP archive, which is convenient when your PDF gets divided into several pieces.

Each output file preserves all formatting, images, and text quality from your source document. The tool only divides the content into smaller files to meet your size limit; it doesn't compress or degrade the pages in any way.

Yes. The entire split happens in your browser on your own device, so your PDF never gets uploaded anywhere. Even large or sensitive documents stay private, which is reassuring when preparing files for email or sharing.