How to add border within canvas size

[stefanb88191817]

Hi all,

I am trying to add a border within an a4 canvas without adding it onto the overall canvas size. I have an image I would like to shrink down inside the canvas. 0.5"/1" borders I am trying to add.

I looked around but the only tutorials are for cropping images with a border on the top or adding onto the canvas around the outside. 

Thanks!

[kglad]

what app?

[stefanb88191817]

Photoshop sorry! Forgot to add that info

[kglad]

in the future, to find the best place to post your message, use the list here, https://community.adobe.com/

p.s. i don't think the adobe website, and forums in particular, are easy to navigate, so don't spend a lot of time searching that forum list. do your best and we'll move the post if it helps you get responses.

<moved from using the community>

[Conrad_C]

Is what is shown below what you’re looking for? This is one possible idea. It shows a new guide layout being added, to mark off a new set of margins 1 inch in from all sides. You can then proportionally resize the image to fit those margins.

But in case this is an issue, notice that the new size will not be proportional to A4. The reason is that A4 is not a perfect square, so if you set a uniform margin around all sides, the resulting area inside the margin cannot be proportional to A4. So this may require some adjustment to the margins, the aspect ratio of the photo, or the final overall size, depending on what’s important.

[Trevor.Dennis]

Conrad's idea has the advanage that it uses linear values, but if you had an idea of how many pixels the border width should be, then you could use:

Ctrl A (select all)

And stroke using Inside  on a new layer.

Note I have already added the stroke in the screen shot below.

[kerrib95468934]

Hey Trevor! I like this method. When I tried adding 300+ pixels this message pops up 'an integer between 1 pixel and 250 Pixels is required. Closest value inserted in photoshop' 

I am pretty new to this but I am assuming the DPI affects the pixels and size needed?

My image is set to 300 DPI. How do I go about converting inches to pixels correctly? So say if I want a uniform border of 1 inch, I have to double that right?

Thanks for the help!

[jane-e]

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@kerrib95468934 wrote:

My image is set to 300 DPI. How do I go about converting inches to pixels correctly? So say if I want a uniform border of 1 inch, I have to double that right?

---

If you look in Image menu > Image Size, you will see that your image is actually set to 300 pixels per inch (ppi). DPI is for ink and depends on your printing output.

The "conversion" between pixels and inches is easy:

• 72 ppi means 72 pixels per inch when printed
• 300 ppi means 300 pixels per inch when printed

If you aren't printing, Photoshop uses pixels, not inches.

@Trevor.Dennis  and @Ged_Traynor: that curry looks amazing!

Jane

[c.pfaffenbichler]

Another option might be 

• Select > All 

• Layer > New Fill Layer > Solid Color 

• Layer > Layer Style > Stroke (Position: Inside)

• Set Fill of Layer to 0%