So I know this is a semi-popular subject, but I still have yet to find anything which works. So I do a lot of scanning (sheet music) and I process those scans with Adobe Acrobat Pro DC (2018). The music is often larger than A4, so I scan it as A3 and crop it. Obviously, the info that has been cropped away is still there, hence why the file size does not change. I would like to discard the invisible information after the crop (and therefore enjoy a smaller file size), but I have yet to be able to figure this out. I have tried a various combination of Preflight tools, I have tried "Remove Hidden Information" (via the Protect menu) and "Sanitize" (via the Redact menu), both of which balloon the file size. I have also tried the Proficiografik Fixup, which doesn't work either. The only options I can see are refrying it (which is obviously a bad idea), or simply exporting it as an image, cropping that, and putting it back together with Acrobat (stupidly work-intensive, albeit very effective and yielding a desirable file size). Can anyone put me out of my misery and help me solve this? Thanks in advance for any help or ideas!
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