Should you compress a PDF online or using software?
Some websites offer to reduce the size of a PDF for free. You just have to upload the document, wait a while and then download the file in compressed form.
These websites are limited in that the user has no control over how much the file is compressed.
Often the quality of the file deteriorates because it has been compressed too much.
Operating systems like Windows 10 also offer built-in tools to compress PDF files.
Again, the quality of the compression is often poor.
Another solution is to use a compressor utility software.
This software lets you control the size and quality of the compression.