Resize this responsive page!

create a new document A3 410mm x 300mm

set pixel per inch 300 or 400

paste in your photo and use CNTRL -T to stretch it so it fills whole window.

Copy layer
Go around object to be masked very carefully with magnetic lasso tool.
When ends have joined up dotted lines will appear.
Delete original layer.
When cutting out tool with selection tool – then you use magic wand and feather 5mm – select inverse and select round mask symbol on channel bar.
Drag background you want to bottom of files view.
The basic principle behind Layer Masks is black is see through and white is solid, so whatever area of your mask is black will effectively be erased from the image, unless you want it back, in which case you would just paint it white instead.
Best not to use eraser tool as this deletes parts of mask forever.
Introduction: One easy way to make your snapshots and photos look more professional is by adding a border in Photoshop. Whether it be a crisp black and white border, or even a coloured border, at the end of this easy and simple tutorial you'll be able to add a border to any picture or photo in Photoshop, perfect for framing and displaying.
Step 1) When you open Photoshop, pull up the picture you want to add the border to. On the vertical menu bar, choose the colour you want to work with. If you want to work with black and white, you'll see on the vertical menu bar there are two boxes with colours in them (the default is black and white). If you want black and black is on the top box, switch it to the bottom. If it is on the top, click the two little boxes on the left side and this will switch them. (Do the same for white so it's on the bottom, if you want white).
You can choose a colour by going to Windows on the top horizontal menu and then checking the box� "Colours" on the drop-down menu. If this box is checked, uncheck it, and then recheck it again. In Photoshop this will take you right to the colours menu box. Now choose the colour by sliding the cursors along the three different bars. Once you find the colour you like, go on to the next step.
Step 2) Now we're going to make the border. On the horizontal menu bar go to Image and then down to Canvas Size. This will now pop-up a selection box. Firstly, make sure the Relative box is checked. Then we're going to decide how large of a border there should be around the picture or photo. Make sure the two right boxes are on Pixels. For my picture, I chose to do 40 pixels on each side (Width and Height). When you decide how many pixels of a border you want on each side, click OK.
And there you go! A perfect, professional, accurate border, perfect for printing and framing!

A quick Photoshop simple hint: Ctrl+Alt+Z will take you back a step or undo what you just did to your photo or picture, no matter what version of Photoshop you're using. Other beginner tutorials will show you how to use other quick keys in Photoshop.

Cardboard MOUNT mask for A3 PHOTOS

OUTSIDE 500 X 400 mm
INSIDE 405 X 295 mm
A3 PRINT IS 410 mm x 300 mm
5mm border.

do this in Canvas size.


When cutting out a cardboard mount surround using 45 degree cutting blade - do the cut out on reverse side of mount paper. I normally go for 5.25 cm from top and bottom for landscape A3 and 4.25 cm from left and right sides.

Do the top and right hand side with the blade on the left hand side of the ruler - do down 3 or 4 times and don't move the ruler. Next do the bottom and left hand side with the blade to the right hand side of the ruler.


You can create mask in photoshop on a single photo. To do this duplicate background layer then delete the background as this is partially locked. Next select mask in the layers panel - a round icon. Select the clear transparent mask by clicking on it.

You paint in BLACK for transparent areas and WHITE to MASK. Make sure that the MASK is selected as above and make sure that the top colour on the left side bar is either black or white as you desire.

You can drag another photo before the new background layer to see the effects of the mask.


create a new layer

use EDIT -FILL and select colour you need.