I have asked a similar question before, but this time my goal is different:
I have a PDF containing blueprints on a single page. There object it depicts is drawn a couple of times: from the side, top, front and back, and a couple of cross-sections.
Altogether, this PDF is fairly complex, as it contains millions of vertices. But I don't need all that information. I just need the side-view as a vector graphic, and all the rest should be discarded.
How can I crop a PDF and remove those vertices that are outside the page's boundaries?
Using Adobe Acrobat X of
pdfcrop I can change the page's dimensions but all the unwanted (off-page) drawings remain in the file. Those need to be removed.
Using Acrobat's "remove hidden information" function is not an option, since that will rasterize the entire document.
I have tried loading the image using Inkscape and Scribus, but the PDF is too detailed and makes those tools crash. I do not have access to any expensive adobe tools.
The reason I want to remove that information is because 80% of the PDF's contents are unused and slow down my computer to the point where I can hardly use it with the document opened. I realize this might be off-topic on this site, but this is where the PDF experts hang out, and I'm hoping that somewhere in the (La)TeX technology stack, there is a tool that can do this.