Grey area under composition area

[magdalenak32114334]

Please explain to me, what is the grey area under the composition area of my work. When I want to export my work to jpg , it stays and changes size to bigger one( compozsition area ) and it is exported as a white background around my work. Sorry about my English.  I hope you understand what I mean. 

Thank you for help.

[Derek Cross]

The grey is the canvas area filled with the foreground colour you have selected.

What backgound do you want e.g white, black, coloured or transparent?

(Note, if you Save a PSD file with a transparent background  as a JPG it will appear as white, as JPGs can't have transparency.)

[magdalenak32114334]

Ok. But even when I change canvas size to 20 x 20 px - this area is still biger than my composition area which is for exapmle 880 x 540 px. It will change size but is still biger than my work area. I do not understand

[Derek Cross]

Is your composition size 880 x 540px or 20 x 20px?

[magdalenak32114334]

880X540 is ma composition, but I try to manage this canvas area - because when I make the same size to canva it doesn't look like it was 880x540. It looks much bigger

[Derek Cross]

Sorry, I don't understand your issue – you create a canvas that's 880 x 540px – and view it at 100%

What do you want to do next?

(The canvas size and magnification percentage is indicated at the bottom of the screen.)

[magdalenak32114334]

Ok. From the beginning. I created a document measuring 880x540 px. Then I'll drag sa picture from another psd to my document. Then a gray background appeared around my document and is larger than my document. After the export, the background is part of the project, which makes my document supportive than I specified at the beginning. I assume that this image from another psd was much bigger than my composition area  and therefore the canvas has grown, but why am I no longer able to change the size of the canvas to match the size of the composition area?  I cannot explain this better

[Derek Cross]

If you create a canvas 880 x 540px, with a transparent background, then open another image and drag it via the tabs onto the 880 x 540px canvas, what happens?

[Bojan Živković]

I was able to reproduce problem, it seems bug or something. What is happening when you try to export from File > Export? For me Photoshop is exporting at artboard dimensions and everything works fine. 

Here are steps used to reproduce what is on screenshot:

• Create new document at some dimensions.
• Draw rectangle using Shape layer which is smaller than document.
• Convert shape layer to artboard using right-click Artboard from Layers.

[magdalenak32114334]

When I tried to export my file, Photoshop is exporting canvas dimensions not artboard. It is like my work area inside another area, which appeared after I drag some images from other psd file. 

[magdalenak32114334]

close, but than take this shape and move outside the oryginal artboard area. Grey area appears and even if you place your chape again inside of artobard , gray area stays and I cannot remove it ( by making form example in the same size lika my document on the beginning?