Unquestionably, when a PDF weighs heavily, it is for two reasons: because it contains many photographs and because these photographs are at a high resolution. The first reason has no solution, but the second is thanks to A-PDF Image Downsample.
The function of the novel algorithm that A-PDF Image Downsample uses is to reduce the resolution and quality of these images, thus occupying the PDF much less and being easier to load and read, especially if it is linked from a web page.
As usual in this type of program, A-PDF Image Downsample allows you to process multiple PDF files at once.
You can free download A-PDF Image Downsample 32, 64 bit and safe install the latest trial or new full version for Windows 10 from the official site.