This powerful PDF editing ‘app of the year’ winner is now 50 percent off

You can easily make corrections and additions with this 2015 app of the year.

There are still many questions yet to be answered by science. For instance: why can’t we edit PDF files without an hour-long struggle? Well actually, you can. PDF Expert lets you make corrections, add new content, sign documents, and even collaborate with colleagues without complex conversion processes. You can get it now for just $29.99 via the Popular Science Shop, saving 50% on the regular price.

This 2015 app of the year allows you to edit PDFs easily, as you would with any typical text file. You can quickly correct any typos in the text, or add entirely new paragraphs as needed. The app even lets you add images, links and outlines. If you just need to make a note, the powerful annotation tools will get the job done.

In addition, PDF Expert lets you fill in forms and sign digital documents, such as tax forms and certificates. You can finally forget about needing to search for a scanner and printer every time you need to sign a digital document.

Worth $59.99, PDF Expert 2.2 for Mac is now just $29.99. You can get the Windows version for the same price via the link.