Batch crop pictures in Photoshop with human in the loop - batch-processing

I want to crop a batch of pictures but with no fixed crop region. For the user it should be just the following steps
image opens automatically
user selects crop region end presses enter
image will be saved and closes
However, with the normal Photoshop Action Recording I can't reach that goal.

You basically just have to klick here to toggle the dialog on:

Related

VBA Userform button image quality is poor

I have a VBA userform with images on all the buttons but for whatever reason the quality of the image on the buttons is terrible. In the attached image you can see the image that is being used on the left is nice and clear but once it gets put onto the button it gets all blurry and pixelated. Is there a setting that can be changed to fix this?
Button comparison

Half-transparent elements in the Adobe Illustrator have a black outlines

I'm new in Adobe Illustrator and I just need to extract one element from EPS-file.
So it's the light. And as you see in the attached file, I can't save it clean.
I mean, when it has a some background, it looks good.
But when I remove this background and trying to save the clean light as PNG image this is what happenes.
Here's the demonstration
How can I fix it?
It appears to me as if you need to select that image in illustrator then open your align pallet and select the option "align to artboard" then click the vertical align button then the horizontal align button. Then go ahead and try saving your file. It should take care of the problem.

Obscuring a bottom part of the screen by a "curtain" while displaying a pdf file

Is there a way to obscure a bottom part of the screen by a "curtain" while displaying a pdf file? I would like to be able to do that while using a classroom lcd projector, so that I can make students focus on the upper part of a page and ask questions before showing the rest of the page. The curtain should be easily movable up and down, like a blank page covering part of display in the old style overhead projectors.
Obviously, the "curtain" program could be independent of pdf viewer, as long as it can work with a pdf viewer in the full screen mode.
(Anticipating comments: slide shows with layers eliminate need for a curtain, but 1. preparing them takes a lot more time and time if of the essence 2. I need to display certain pdf documents which are not slide shows.)

How do you size a button to an image in the xcode IDE?

Every week I get some image updates from our graphic designer and often the sizes change. I am now bored of manually working out the size of the image and setting the button size to suit - a process I must follow to ensure the image is displayed at it's natural size for best quality.
Surely there must be a way in xcode to tell it to size the button to suit the background image?
Select the element in the storyboard and under the editor menu, you can select "size to fit content".

User Settings for background image

Can I use application settings to save a background image?
For example, I want to make an CPanel witch have an option for upload background image for program. I want that after save, that image to be background image.
I have 2 options for this but I don't know codes:
1. Upload image to resources and in code, I use setting name instead of photo name
2. After upload into CPanel, that image will overwritte the current image with same name. For exemple I have in Resources folder a photo named logo.png. With code, I put this photo to be background. After Upload an image, that image should overwritte current logo.png so then program will start, he will start with current logo.png.
But for second option I have an additional question. If I will put external image into PictureBox and set PictureBox Background to Stretch, that photo will be Stretch or will be with normal dimensions?