Yumpu DL 作成者: simplylu

Yumpu DL lets you export public Yumpu documents as a single PDF in high image quality without the need of having an account. It will only be able on yumpu.com, and exposes a download button, that when being pressed, starts evaluating the document to find out number of pages, max quality, and then downloads the images and glues them together in a PDF file before it downloads the file.