I compressed a PDF file that was around 95 MB, and the online compressor compressed it to only 1.15 MB, but when I viewed the file it still has a great, almost exact same quality.
In: Technology
PDF are technically not “an image”, but rather text, special text, “code”. A lot of that can be considered “clutter”, often left behind for redundancy or for being inefficient. Compressors usually de-clutter the file, then applies actual compression (which Tom Scott made an excellent video about on youtube, I recommend checking it out.)
In short: Trims the excess useless fat, then applies regular compression.
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