What program to use for making an A3 size poster?

[kennylmao]

Here is my dilemma,

I volunteered to make an A3 size poster for an event at my college because I thought, "Why not? How hard can making a poster be? I can also practice my GIMP editing skills.".

My dad who works in the advertising industry, says that I need Adobe Photoshop and Illustrator if I want to make a poster because the printers use these program files as standard and nothing else.

I thought I can make a poster using any free image editing program like GIMP and save the file in PNG files for printing.

Should I pull out from the job since I do not have Adobe Photoshop and Illustrator or is making a poster doable only with GIMP?

I am trippin' right now(I have a little anxiety problem) and I'll probably step down from the task when I get back to college on Monday.

Thanks.

EDIT: I do not have AutoCAD either.

 

[turboash78]

I've made life size prints of people using AutoCAD, if that's an option for you.

 

[Ibonibo]

AutoCad works but I doubt you have that program.

Get the size of an A3 (in or cm), open a new file with those dimension and voila you will have your Poster.
That's on PS, but Gimp should be the same procedure.
300dpi is probably enough as it is the limit for a lot of consumer printers.

If you don't can do that on gimp, I can make you a blank A3 png, tiff file, after that you just have to fill it out.

 

[kennylmao]

I've made life size prints of people using AutoCAD, if that's an option for you.

Thanks for the advice... 👍

AutoCad works but I doubt you have that program.

Get the size of an A3 (in or cm), open a new file with those dimension and voila you will have your Poster.
That's on PS, but Gimp should be the same procedure.
300dpi is probably enough as it is the limit for a lot of consumer printers.

If you don't can do that on gimp, I can make you a blank A3 png, tiff file, after that you just have to fill it out.

...but you guessed right I do not have AutoCad.

Yes, it is the same for Gimp. I'll do that. 👍

But I am afraid the printers(people I go to for printing the A3 poster) do not support PNG files. As my dad said, they only use Photoshop and Illustrator file format(I am not 100% sure about this).

 

[Blaze_409]

Gimp can save documents in PhotoShop format.