Photoshop Help

In Publisher, I can split a A3 page in half with columns in each side with the middle spacing of 0.5cm, how do I do that in Photoshop?
So when I print it off and fold it, each side is equal,

Answer #1
Can someone help me please
Answer #2
Since Photoshop doesn’t have the concept of pages / page designs because it’s not publishing software like Publisher you’ll need to just manually set it up (InDesign is the Adobe publishing software) Go to preferences, set your measurement unit to centimeters, create a new A3 document, add center guides using “View” -> “New guide”. The guides will of course need to be in the middle at positions (A3 size / 2 – 0.25cm, A3 size / 2 + 0.25cm) to give a 0.5cm gap, so insert the guides at (20.75cm, 21.25cm).
Answer #3
in Photoshop you can’t put spacing… – – – and you can put also spacing
you can’t because there’s no need to put gap since you will fold your layout on the middle
– what you only need is a guide (ruler guide)
– make a page (size it A3, whatever it is portrait or landscape)
– and you can just use your Ruler (apple R or control R in windows)
– from your left, there’s your Ruler – click hold on that ruler and drag that to your Page (A3) and that ruler guide will automatically snap on the middle of your page, from that it’s ok – coz you know where is middle of your page – and that is your visual guide

and you can put also spacing – manually
– yeah, manually
– File > New > let say A3 landscape (in centimeter) put 42.5 (.5 is your gap)
– once you have that page, you dont know where is the gap – – – by using a ruler guides again you will have and you will see how you will put your layout
– so go to Main Menu > View> New Guide (type 21 cm – vertical) and you will have “one vertical line” on your page
– after that go again and repeat – – – but this time make your measurement 21.5, and you will see that two lines now are on your page – that is your guide for the gap


and if you want a more professional way of doing artwork in photoshop – since your work is a printed matter – usually it is not layouted in an actual size itself – designer “always” put a “bleed” on the artwork for printed matters – and i recommend it to you to use when you are doing printed matters, putting .3 (3mm) on four sides of your layout page is the safest way that there is no white space when they trim the actual printed matter
something like this

Answer #4
make an A3 sized new PS image
then add your L/R images to individual layers
then place the layers where you want them