If you want to resize the contents as well (layers, paths...) see Image>Scale image. If you want to just reduce the canvas size, see Image>Canvas size. If you have a 16x16 layer in the middle of large canvas, Image>Fit canvas to layers can also be a solution.
If you must use JPG:
Go to 'File → Export'
Choose 'JPG' from the 'Type' dropdown menu
Tick 'Use Artboards' (this excludes the fall off)
Since you mentioned needing this for print, choose CMYK with the largest 'Quality' and 300dpi 'Resolution'
Note: for printing purposes a PDF might work better. In which case you should use 'Save as' and choose ...
Use the color picker tool to sample the color of the background on the existing layer
Layer>New layer, have it filled with the foreground color (ie, the one you just set with the color picker)
Move it to the bottom of the layer stack
Merge the visible layers (or not...)
I have received a perfect answer at another (non-English) site, let me publish it here for those who may have the same question in future.
mogrify -extent 640x640 -gravity Center -fill white *.jpg
(the mogrify command is a part of ImageMagick)
The best solution is to work in a vector application where canvas size means nothing. You work at whatever is comfortable for you. Since it's vector, you can always resize as needed without any quality loss.
If you're working in a raster application, such as Photoshop (and yes that includes Photoshop's vector tools. Photoshop never creates vector files) ...
For both rectangle selection and crop tool: use View>Snap to canvas edges, then click sufficiently close to a corner (IIRC 8 pixels or less, by default) and your selection will start exactly on the corner.
Also, once you have a selection, if you release the button and move towards the center of the selection, you get a crossed arrows pointer that says that ...
There are a couple of different options
Skala Preview - Works only on Mac, mobile app works for iOS or Android
A short description from their website
Skala Preview sends lossless, colour accurate image previews to any
iOS or Android device. Previews are pixel perfect. Colours are
identical to how the final app or website will look on the device.
The issue we have in your example picture is that pasting is normally done in the active layer. This active layer is marked with dotted yellow lines in your example. Pastes outside of this layer will not be possible.
The example below shows how a paste partly inside, partly outside of the active layer will render:
To overcome this we can either create a ...
Sketch has preset A size artboards (not A2 though), but you can change the size of your artboard easily enough.
Sketch Documentation – Artboards
If you are unsure of the pixel size you need your artboard to be—first decide or ask your printer what PPI your artwork should be, then calculate the dimensions from there.
There are calculators that will help ...
All pixels in Photoshop are restricted to the Canvas Size. You can't draw outside the canvas.
However, there is a way to draw outside a particular area via Artboards within Photoshop.
Set the Canvas size to as large as you want, larger than your needed drawing area.
Then select the Artboard Tool (under the Move Tool)
And then click-drag with the tool to ...
It tells how to convert your artwork to physical units. So essentially its how many pixels form an inch. If you design for print you should set it to 150-300 and type physical dimensions of your output (not pixels). If not leave it as 72.
For historical reasons 72 means value not set, which in turn means designed for a screen device. (Why 72? Adobes ...
I have thought of some different ways you could display text.
The first one since this is an online application would be to use a hover state for the different orbs. This wouldn't really work if the orbs didn't have any meaning. You would most likely need to add some sort of icon. Then have description text when hovering or clicking on the orb.
When you create a layer mask there are two option... A mask set to Reveal All or a mask set to Hide all.
The difference is the initial color of the mask.. if it's a white mask, you've created a Reveal all mask. If it's a black mask, you've created a Hide All mask.
When you click the Add Mask button at the bottom of the Layers Panel it by default creates a ...
150 ppi is plenty of resolution if you're printing on canvas. If you expect your piece to be viewed from a few inches away (less than 16), then 300 ppi is more than sufficient. Beyond that point you're just adding to the file size without adding visible image information in the final product.
On high-grade art paper, you can go as high as 600 ppi. Beyond ...
You can do this with actions & the batch automation feature within Photoshop. To accomplish a colored or transparent background with new size dimensions, you'd create an action set (folder icon) and create an action within that set for each color you're looking to batch.
Step 1: Create the action
Record yourself resizing the canvas for future ...
If you use create a new canvas with material on your clipboard, it will automatically adjust the dimensions of the new canvas to only what you have selected.
You can use the magic wand, or any other shaped selector to outline only what you want, then Ctrl + C, Ctrl + N, Enter, Ctrl + V.
Ctrl + A will also select only what actually exists on your current ...
If you want to trim the surrounding pixels that are out side of the canvas boundaries there is Trim to Image size in the image menu.
This will crop out all the pixels on all layers that are outside of the canvas boundary.
It sounds like draw.io is what you're looking for.
A quick preview:
As you can see it's just a simple, intuitive browser tool. It's got some handy features like copy and pasting cell styles, forcing objects to front/back and toggling pages on or off. If you need there are also plenty of tutorials and instructions to be found online though I have to admit ...
No. There is no magic you can do.
I must explain something. 72 ppi does not mean anything regarding picture quality.
You can shot a photo using a 50,000 USD camera and it can be 72 ppi.
What you need to know is the total pixel dimension. Without this information there is no way to know the real issue here.
After knowing the real issue, one thing that you ...
Theoretically you can't "uncrop" an image. That would entail pulling image data out of thin air. As far as I'm aware, there is no direct opposite term for "crop" - as in a term to mean "keep existing pixels, but add additional pixels around the outside of the image."
You can change the aspect ratio of an image from 3:2 to 4:3 or to 16:9 resulting in a ...
I'd call that padding, in that you pad your logo with some empty space. Much like you pad fragile contents of the box with protective soft (but otherwise useless) material to avoid getting it damaged.
In CSS the padding property specifies how much empty space there has to be between the container's borders and its contents. Sounds pretty close to the result ...
Add some guides to an image for cropping, using the raster image editing software of your choice.
Crop and export one piece using the guides you previously made.
Undo the crop and repeat step 2 until all pieces have been done.
There are several ways to do this. The simplest are:
From Adobe Bridge, double-click to open the image in Photoshop.
From Finder/Explorer, right-click and choose Open with > Photoshop.
From Adobe Bridge, right click and choose Place... > In Photoshop. If Photoshop isn't running, it will open and your image will be placed as a Smart Object.
It's called 'ASCII Art'. Google 'ASCII Art Generator' and you'll find plenty of examples. You'll need some animated images to use as the source to then convert to ASCII.
Once you have it converted to ASCII, you could place each 'frame' of text in a DIV with a monospaced font and then, via JS, rotate showing each DIV one-by-one to create the animation.