pdf_add_thumbnailDescriptionbool pdf_add_thumbnail ( resource pdfdoc, int image )Adds an existing image as thumbnail for the current page. Thumbnail images must not be wider or higher than 106 pixels. 若果成功則返回 TRUE,失敗則返回 FALSE。 See also pdf_open_image(), pdf_open_image_file() and pdf_open_memory_image(). | ||