How do I resize after cropping?

Wilt wrote in post #19025354
Thx for that info, Jeff, but it seems to be perhaps urban legend according to the link to Pekka message about photo sizesl

Ah... 1600 x 1600 pixels, per Pekka, and no stated file size limits per se. Clear enough.

So I will simply stick to 1500, 1000 as easier to remember than 1600, 1066 that corresponds to 1.5:1 of the native dSLR frame!

I guess it would be worthwhile verifying by

1. trying with a 1700 x 200 image, to exceed one dimensional limit
   
2. then try with a >10MB file which has 1600 x 1600 pixels stored in high Quality JPG.
   

Well, here is a photo taken with a Canon S110 capturing RAW, that is sized 1800 x 1350 pixel output JPG, to exceed the 1600 pixel (each dimension) limit...
...so it seems the 1600x1600 pixel limit is a lie, and it came from Pekka himself!

And I could not even make a photo with 1600x1600 pixels limit, any larger than 2.3MB even at the very highest JPG quality setting!

Lastly, I created an output JPG equal to camera native resolution 4000 x 3000, and at highest JPG quality, creating an 11MB file...this should make the POTN software barf, in theory

4000 x 3000

EMBED PREVENTED, IMAGE TOO LARGE: https://i69.photobucke​t.com …full%2001_zpsld​g8qdtz.jpg Click here to see our image rules.

And clicking the link to Rules, we get

"OUR IMAGE RULES are simple:
CURRENT IMAGE LIMITS

We currently allow 8 images to be embedded in a post. Embedded images must fit into 1600 x 1600 box, and be less than 2.5 MB in file size.

Choderboy wrote in post #19025770
Clicking on the image results in a box: "zoom to 100%, (1440 x 1080.)"