Where to find resolution settings in Photoshop

Resolution in Photoshop lives in one place: the Image menu at the top of the screen. Click Image, then look for Image Size — that is the window where you change how many pixels per inch your image contains. This is different from canvas size (which changes the visible area) or file size (which is how much space the image takes up on your computer). Resolution is purely about pixel density.

When you open Image Size, you will see three numbers that matter: width, height, and resolution. The resolution field shows pixels per inch, written as ppi or dpi. Most screen images use 72 ppi. Print images usually need 300 ppi. The relationship between these three numbers is locked by default — if you change one, the others shift to keep the total pixel count the same.

Key Takeaways

  • Resolution is found in Image > Image Size, and it measures pixels per inch, not total file size or image dimensions.
  • Screen images typically use 72 ppi, while images meant for printing need 300 ppi to avoid blurriness.
  • Changing resolution without resampling keeps your pixel count the same but changes the physical size the image will print at.
  • Increasing resolution by resampling adds pixels that Photoshop invents, which makes the image softer and is not a real substitute for shooting at higher resolution.
  • The chain link icon between width and height controls whether those dimensions stay proportional when you edit them.

Changing resolution without adding or removing pixels

The most common reason to change resolution is to prepare an image for a different use — screen versus print, for example. Open Image > Image Size. Look for a checkbox labeled Resample Image and make sure it is unchecked. This mode keeps your pixel count exactly the same but changes the physical dimensions the image will print at.

If your image is 1000 pixels wide at 72 ppi, it will print about 14 inches wide. Change the resolution to 300 ppi without resampling, and that same 1000 pixels now prints about 3.3 inches wide. The image itself does not change — you are just telling Photoshop to pack those pixels more densely. This is the right move when you have a screen image and need to know how large it will actually print, or when you are sending an image to a printer and they have told you what resolution they need.

Resampling: adding pixels Photoshop invents

If you check the Resample Image box, Photoshop will add or remove pixels to reach the resolution you set. This is tempting when you have a low-resolution image and need higher resolution — but the pixels Photoshop adds are guesses based on the surrounding pixels, not real detail. The result is a softer, blurrier image than if you had shot or scanned at that resolution from the start.

Resampling up (adding pixels) is almost never worth doing. If you have a 72 ppi image and resample it to 300 ppi, Photoshop will invent most of the pixels, and the image will look noticeably softer. Resampling down (removing pixels) is sometimes necessary — if you have a 300 ppi image that is too large for web use, you can resample down to 72 ppi and reduce file size. But resampling up is not a path to higher quality.

The chain link icon and keeping proportions locked

Between the width and height fields in Image Size, you will see a chain link icon. When it is linked (connected), changing width automatically adjusts height to keep the image proportional. When it is broken, you can change width and height independently, which stretches or squashes the image. For most work, you want the chain linked.

The same chain link appears between the resolution field and the dimensions. When linked, changing resolution changes the print size but keeps pixels the same. When broken, changing resolution can change the pixel count. Leave this linked unless you have a specific reason to unlink it.

Common resolution targets for different uses

Screen images — websites, email, social media — should be 72 ppi. This is the standard screen resolution and keeps file size small. Images for printing should be 300 ppi. This is the standard for most commercial printers and photo labs. Some specialty printing (like fine art or high-end photography) may ask for 600 ppi, but 300 is the baseline.

If you are sending an image to a specific printer or service, ask them what resolution they need before you change anything. They may have a different standard, or they may not care as long as the pixel count is high enough. Knowing the target resolution before you start editing saves you from having to redo work later.

What happens when resolution is too low for print

If you send a 72 ppi image to a printer that expects 300 ppi, the printer will either enlarge the image (making it blurry) or reject it. The image will not have enough pixels to print clearly at the size you want. This is why checking resolution before you send work to print matters — a 72 ppi image that looks sharp on screen will look pixelated or blurry in print.

If you discover your image is too low resolution after the fact, your only real options are to go back to the original file (if you have it) or to shoot or scan again at higher resolution. Resampling up in Photoshop will not fix the problem — it will just make a soft image larger.

Frequently Asked Questions

Can I change resolution without changing how big the image looks on screen?

Yes. Make sure Resample Image is unchecked, then change the resolution number. The image on your screen will not change size — only the print size changes. The pixels stay the same; you are just telling Photoshop to interpret them at a different density.

What does dpi mean versus ppi?

DPI stands for dots per inch and is technically a printing term. PPI stands for pixels per inch and is the correct term for digital images. Photoshop uses ppi, but many printers and print shops use dpi. They mean the same thing in practice — the number of dots or pixels per inch.

If I resample my image up to 300 ppi, will it look as good as a native 300 ppi image?

No. Resampling invents pixels based on surrounding pixels, which softens detail. A native 300 ppi image shot or scanned at that resolution will always look sharper. Resample up only if you have no other choice, and expect some loss of sharpness.

Do I need to change resolution before uploading to social media?

Social media platforms compress images heavily regardless of resolution, so 72 ppi is standard and fine. Changing to 300 ppi will not improve the image on social media and will only make the file larger.

What if the printer asks for a specific file size instead of resolution?

File size and resolution are different things. A printer asking for file size is asking how many megabytes the image is. You can check file size in File > Export As. If they ask for both file size and resolution, work backward from the resolution first — that determines pixel count, which determines file size.