

I don't know how they managed to make it worse, buggier, more unstable, more cumbersome to use, larger and slower with every new version, without ever fixing any of the bugs people have been reporting for often 10 years or longer. However, the state of affairs is particularly sad when it comes to the Acrobat Reader. Besides that, STDU also supports tabs and session saving.Adobe is always good for examples of particulary bad software. I don't know if they heard my plea or just came with the idea themselves but from version 1.6.294 (at least) STDU can do vertical splitting, and you can move and zoom in independently in both panels. At the time I discovered it, I remember emailing the STDU support to ask for this feature. when switching windows).įrom this same post ( Alex) I found that STDU (v 1.6.206) could do non-sync splitting but the feature was only horizontally, misusing the great advantage of modern wide screens. Having the same PDF in two different windows is not optimal and somehow annoying (e.g. Adobe Acrobat Pro offers some of this in the menu Window -> Split vertically but the problem is that the two views are synchronized: when you scroll one side the other scrolls too, not letting you see two parts of the document. I was always looking for some PDF viewer that could do something as simple as splitting the view.

Most of the PDFs I read are scientific articles and most of the time you need to read the article and watch a figure from the same file. This has been an issue I have been dealing with too.
