Just press Command + Spacebar and start typing colorsync. If you want to fine-tune it, you can open the ColorSync Utility. I was able to get a PDF file from 500 KB down to only 82 KB using this filter. Click on the drop down and select Reduce File Size.Ĭlick Save and you’re done. You’ll get a pop-up dialog and one of the options at the bottom is Quartz Filter. Now, click on File and then click on Export.

In that case, just right-click and choose Open With. By default, PDF files will open in Preview unless you installed Adobe Reader or a third-party PDF viewer. Firstly, open your PDF file in Preview by just double-clicking on it in Finder.

If you have a Mac, there is a great and easy way to significantly reduce the size of a PDF file using the built in Preview app. It also supports encrypted PDF documents and can work on a batch of hundreds or even thousands of PDF files at once. It supports lossless compression, so you should not see any reduction in the quality of the PDF. PDF Compressor is a free program you can download for Windows XP/Vista/7/8 that lets you quickly and effectively reduce the size of one or many PDF files. In addition, you can remove bookmarks, remove PDF layers, remove annotations, remove page labels and manually adjust the quality for color and monochrome image compression. It has a bunch of options and some presets like high compression, low image quality or low compression, high image quality, etc. Not too bad, however, on the Mac (Method 2), I was able to get that same PDF down to only 82 KB.Īnother online tool I use to compress PDF files is Neevia Compress PDF. It was able to take a 500 KB file and shrink it down to about 368 KB. What’s nice is that you can use it anywhere or any operating system and it even supports the new drag and drop feature of HTML 5, which is a nice convenience.

Online pdf file size reducer