FileOptimizer

I agree with the positive reviews. Seriously, this is a great, "no brainer" optimizer that works substantively much better than alternatives I've tried (mostly for PDFs).

As for the ads: they're totally unobtrusive, and I'm usually doing something else as I'm batch compressing files, anyway--and can be turned off. If you don't want to use a free software that doesn't even force you to watch ads (AGAIN: you can turn them off), then just pay for something. I'm more than happy to do whatever I can to support this developer. He's put together a bunch of freeware tools in a great "swiss army knife" and I really appreciate it!

Too fast and powerfull compared to other desktop softs. Compress pdf 8mb: 11sec (filteoptimizer) vs ~150sec (other free softs). Dpi and layer option like pro app.

Yes, this app have a lot binaries from other sources that can do wonders, but you can't do much with this GUI App, you have very short control in the settings, for example when optimizing PNGs you can't even decide which tools you want to use, or the settings for those tools. In the end, you won't have a very good result and it will take forever to finish a simple one file optimization.

The only program that contains in one place a lot of loseless compressors for various formats.

This is one of the best file optimizers. This program, in order, applies various compression algorithms to one or more files. For example, Png is compressed by various third-party algorithms, such as pngwolf.exe, Leanify.exe and others. A wide variety of formats are supported.

• App is begware, asks to enable ads every time
• You shouldn't be using a bulk optimizer unless you know what you're doing
• You wouldn't be using a bulk optimizer if you know what you're doing, this is overkill and inefficient.

Perfect for non-experts but a little slow. Does a great job overall.