irfanview is good at... extracting a page (as Jpg, Png) from a PDF file.

 >>> I have thousands of images from .jpgs to .pngs on my computer.  I use
 >>> the (free) FastStone Photo Viewer.  It's not only a great image
 >>> viewer, but offers many other options from selecting by tagged images
 >>> to bulk re-naming.  It's set as my default viewer.
             bulk re-naming ---- i've never wanted to do this.
 >>>
 >>> https://www.faststone.org/
 >>
 >> https://www.irfanview.com/
 >
 > I have both Faststone and Irfanview, and I like Faststone better.
irfanview is what i like.
irfanview  is good at... extracting a page (as Jpg or Png) from a PDF file.
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irfanview   while watching an  .mp4  file...
          ->  The right arrow  jumps ahead (FF) 6 minutes.
             There seems to be no way to  go ahead  1, 2, or 3 minutes.
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today i was watching an  .mp4  file (a Carpenters Documentary)
              and the volume is too soft. and i can't turn the Volume up.
https://irfanview-forum.de/forum/program/support/3948-
 >>>   Bottom left is a start/stop button. Stop is the same as pause, isn't it, as the stop button just changes to the start button.
Next to that is a menu for volume controls, etc., and a slider for position. I am viewing a WMV file. <<<
                          ---------- i can't find the Volume control.
                                     ooh.. found it..  Up Arrow