Compress for Mac provides a quick, easy solution for image compression.

At, we write reviews daily Monday through Friday. Each review has one or more images and each image needs to be compressed to optimize the loading times on our website. We used to do this by opening up Photoshop and tweaking the image. But, what if we could do this quickly without having to open up Photoshop? What if we could see the quality and the size of the image as we worked with it? That’s where Compress comes into play. By the maker of PwGenerator, this app was designed perfectly for what we do.

Not only do we use it to reduce the size of our website, but we also use it to reduce email attachment file sizes.

After testing Compress, I found it did a better job of compressing images than Photoshop so much so that I have been using it to compress images we have used on MacSources reviews from the past. Below are the file types that work with Compress from the developer’s website.

jpg, jpeg, jpe, jp2, jpf, psd, png, bmp, gif, dng, tga, raw, cr2, arw, ico, icns, tif, tiff, hdr, exr, mac, pnt, pntg, targa, cur, xbm, orf, mrw, rwl, rw2, raf, crw, efx, jfax, jfx, g3, fax, dcr, erf, sr2, srf, srw, pef, nrw, nef, fff, mos, 3fr

Compress-MainWhen starting Compress you will see (Image Left) the compression slider and zoom slider. The sliders will allow you to change the file size by simply dragging the slider from right to left. The zoom slider allows you to zoom in on the image that you are compressing to see the quality before clicking on the Compress button. You can add images to Compress by using the button marked ‘Open’ or dragging an image to the dock icon for Compress.


Once you have added an image, you will see the original next to what will be the exported copy.
In this view, you can see the different file sizes and quality. When using the zoom option, you can decide if you have dragged the slider too far or not enough when compressing your images.

Exporting is where you will see the format of your image. As for now it only does JPEG. The one thing I would like to see added in a future release would be the option to export as PNG. I use PNG images to export transparent backgrounds. Besides seeing the image format you also see the Compression percentage of your image.Compress-2

Select a folder or just export the image to the desktop which is the export destination by default. You can also export to an external drive if needed.

In addition to individual image compression, Compress can also complete batch compression of several images.

Compress is efficient and optimized for multi-core systems. It can be found in the Mac App Store and is sold for $5.99.

Down to the main question, do we like Compress? The answer is YES! So much in fact that we have three copies to give away to our viewers. The info is below.

Visit the developers website for other great apps.

Like us on Facebook, follow us on Twitter or leave a comment below for a chance to win a free copy of Compress. We will be picking winners on the 4th of July and will send you information via PM if you’re a winner!