ALSee

ALSee is a great answer to the lackluster photo viewers that come stock in operating systems. There are many options out there for photo viewers, but when it comes to one that is reliable and has a decent amount of features, ALSee is the top among all the options. In addition to being a very comprehensive and dependable image viewer, it also can edit images as well! You can alter the colors of the image, crop the photos as you see fit, rotate them in all sorts of orientations, and straighten the image. It also has options for you to edit text (such as speech bubbles!) and get rid of red-eye effects in the people in the photo! Each of the editing options also has an array of methods to change how the effect is applied as well, giving you very granular control over how the final product of your image turns out. Changing things on the fly and reverting them is a simple process, allowing you to make just the right touch of changes for the effect you are looking for. 

One of the most useful options, one that isn't available in any standard image viewer that is built into an operating system, is the ability to edit EXIF data. It enables you to manage sensor information, GPS location, and other sensitive information that you might not want to be attached to an image. With ALSee, you can edit and review that information as you see fit, getting rid of sensitive location information altogether, or even applying copyright to your finished product. 

There are even options for you to watch the images as a slideshow, which operates a whole lot better than the slideshows in stock image viewers that come with operating systems out of the box. 

Advanced control of images allows you to tweak how the photos look and make a better overall image.

All the changes you make can also be reverted to the defaults in case you make a mistake. 

If you are looking for a more advanced image viewer that offers some basic image editing options, ALSee is the right tool for you.