Compress a PDF Online Free: See the Size Drop
Compress the PDF that's too big to send, online and free, and see the size drop: drop a file in, pick how hard to squeeze it, light, balanced, or strong, and the size before and after shows up right on the page. Getting a PDF file compressed down to 1 MB or 2 MB for an upload limit is the usual reason people end up here. If a file is already about as small as it can reasonably get, you're told that instead of getting handed back a slightly bigger file. Strong compression trades some image quality for a smaller file; balanced is the safer default if you're not sure which to pick, and light barely touches quality at all.
What the demo shows
The demo compresses a PDF that is too big to send. A file is dropped onto the page, and the size before and after appears right on the page, so you see how much was saved without opening anything else. The page offers light, balanced and strong compression, and the clip points out where the size actually goes by opening the explanation on the same page. Another tool next to it, crop PDF, trims wide margins and shrinks the file further. Compressing is free, and the typical reason to use it is getting a PDF under an email or upload limit. If a file is already about as small as it can get, the page tells you so honestly.
Transcript
Compress a P D F online: this is Scan Reviver. Drop in a PDF. There it is: the size before and after, right on the page. Curious where the size actually goes? That opens right here. Crop PDF trims wide margins and shrinks it further. It's free: the link's in the description. Five euro unlocks every tool.