My blog's theme's fullest width is 800px. Usually that is the size of the images I upload from my PC, unless they are naturally smaller than that or sometimes larger. The system would automatically select a size to insert into the post. Then I would resize it within Text mode, ie change the width, height and width, and so on. The changed size is reflected in Visual mode and is obvious. Sweet! I didn't need to preview the post as I was confident it would look as per the changes I'd made (apart from the fact, I can no longer preview my posts anyway....but that is another matter!).
I currently have a published post which looks slightly fuzzy anyway, as it is a 16:9 aspect ratio image prepared in Picasa as a collage. I had decided to reduce the size to crisp it up a little, and when I was within the Edit Post >Text mode, I changed its proportion to 648x365px (the original being 800x450px). The change was obvious within the Edit Post mode. However, when checking it on the blog itself, it still looks the same and, therefore, I decided to right-click the image and check on Properties to see what it said. Here is the info: http://jmnartsy.files.wordpress.com/2012/11/1-maxtor-origs11.jpg?w=840.
Can I presume the w=840 refers to the width of the image, and has been added by the WP system, somehow, as the original link detail ends at .jpg. Yet, part of the Properties info. indicated that the image dimension was 800x450px!
Why has my resizing not been applied?
The image I refer to above is the second image, which I had to upload again from my PC and insert into the post. Because I had gone back into Edit Image mode within the Media Library and tried the new Scale Image process, but once I pressed the Scale button, it produced a very tiny image-holder with a red x inside it; No Image! L>O>L!!! At that point, I wasn't aware of the Undo process (I've just read about it within these Forums).
Does this mean, now, that I will no longer be able to change image sizes after upload?
Does this mean, then, that I will have to be definitely certain of the size I want my images to be, before uploading, and resize them to that size on my PC, as the Scale Image function does not work?
The blog I need help with is jmnartsy.com.