How to change resolution in photoshop

某些 Creative Cloud 应用程序、服务和功能在中国不可用。

Photoshop has an updated Image Size dialog box. See Resizing images for more information.

About pixel dimensions and printed image resolution

Pixel dimensions measure the total number of pixels along an image’s width and height. Resolution is the fineness of detail in a bitmap image and is measured in pixels per inch (ppi). The more pixels per inch, the greater the resolution. Generally, an image with a higher resolution produces a better printed image quality.

How to change resolution in photoshop

Unless an image is resampled (see Resampling), the amount of image data remains constant as you change either the print dimensions or resolution. For example, if you change the resolution of a file, its width and height change accordingly to maintain the same amount of image data.

In Photoshop, you can see the relationship between image size and resolution in the Image Size dialog box (choose Image > Image Size ). Deselect Resample Image, because you don’t want to change the amount of image data in your photo. Then change width, height, or resolution. As you change one value, the other two values change accordingly. With the Resample Image option selected, you can change the resolution, width, and height of the image to suit your printing or onscreen needs.

How to change resolution in photoshop

Quickly display the current image size

If you want to quickly display a document’s current image size, use the information box at the bottom of the document window.

File size

The file size of an image is the digital size of the image file, measured in kilobytes (K), megabytes (MB), or gigabytes (GB). File size is proportional to the pixel dimensions of the image. Images with more pixels may produce more detail at a given printed size, but they require more disk space to store and may be slower to edit and print. Image resolution thus becomes a compromise between image quality (capturing all the data you need) and file size.

Another factor that affects file size is file format. Because of the varying compression methods used by GIF, JPEG, PNG, and TIFF file formats, file sizes can vary considerably for the same pixel dimensions. Similarly, color bit-depth and the number of layers and channels in an image affect file size.

Photoshop supports a maximum pixel dimension of 300,000 by 300,000 pixels per image. This restriction places limits on the print size and resolution available to an image.

About monitor resolution

Your monitor’s resolution is described in pixel dimensions. For example, if your monitor resolution and your photo’s pixel dimensions are the same size, the photo will fill the screen when viewed at 100%. How large an image appears on‑screen depends on a combination of factors—the pixel dimensions of the image, the monitor size, and the monitor resolution setting. In Photoshop, you can change the image magnification on‑screen, so you can easily work with images of any pixel dimensions.

How to change resolution in photoshop

When preparing images for viewing on‑screen, you should consider the lowest monitor resolution that your photo is likely to be viewed on.

About printer resolution

Printer resolution is measured in ink dots per inch, also known as dpi. Generally, the more dots per inch, the finer the printed output you’ll get. Most inkjet printers have a resolution of approximately 720 to 2880 dpi. (Technically, inkjet printers produce a microscopic spray of ink, not actual dots like imagesetters or laser printers.)

Printer resolution is different from, but related to image resolution. To print a high quality photo on an inkjet printer, an image resolution of at least 220 ppi should provide good results.

Screen frequency is the number of printer dots or halftone cells per inch used to print grayscale images or color separations. Also known as screen ruling or line screen, screen frequency is measured in lines per inch (lpi)—or lines of cells per inch in a halftone screen. The higher the resolution of the output device, the finer (higher) a screen ruling you can use.

The relationship between image resolution and screen frequency determines the quality of detail in the printed image. To produce a halftone image of the highest quality, you generally use an image resolution that is from 1.5 to at most 2 times the screen frequency. But with some images and output devices, a lower resolution can produce good results. To determine your printer’s screen frequency, check your printer documentation or consult your service provider.

Some imagesetters and 600‑dpi laser printers use screening technologies other than halftoning. If you are printing an image on a nonhalftone printer, consult your service provider or your printer documentation for the recommended image resolutions.

How to change resolution in photoshop

Determine a suggested resolution for an image

If you plan to print your image using a halftone screen, the range of suitable image resolutions depends on the screen frequency of your output device. Photoshop can determine a recommended image resolution based on the screen frequency of your output device.

If your image resolution is more than 2.5 times the screen ruling, an alert message appears when you try to print the image. This means that the image resolution is higher than necessary for the printer. Save a copy of the file, and then reduce the resolution.

Updated September 28, 2017

Selecting the right image for your project makes all the difference in whether it is successful. From signs and ads to web-page layouts, the images you use are the first thing someone notices. Perhaps you have the perfect image, but it is too small or the resolution is too low. While you could simply enlarge it, doing so incorrectly results in a fuzzy picture. If you have access to a good graphics program, learn how to correctly increase the size and resolution of an image.

Load the image that you want to work with onto your computer, either by transferring it from a digital source or by scanning it in.

Open Photoshop. Select “File” from the menu and choose “Open.” In the dialog that appears, locate the image you loaded and open it.

Select “Image” from the menu and choose “Image Size.” In the dialog that appears, change the “Interpolation” to “Bicubic Smoother.”

Increase the pixel width and height of your image as well as the resolution. Click “OK” and save your work.

Load the image that you want to work with onto your computer, either by transferring it from a digital source or by scanning it in.

Open GIMP. Select “File” from the menu and choose “Open.” In the dialog that appears, locate the image you loaded and open it.

Select “Image” from the menu and choose “Scale Image.” In the dialog that appears, increase the size and resolution by 10 percent. Click “OK.” Repeat this step as many times as it takes to get the image to the final resolution you want. Save your work.

Load the image that you want to work with onto your computer, either by transferring it from a digital source or by scanning it in.

Open Photoshop Elements. Select “File” from the menu and choose “Open.” In the dialog that appears, locate the image you loaded and open it.

Select “Image” from the menu and choose “Image Size.” In the dialog that appears, change the “Interpolation” to “Bicubic Smoother.”

Increase the pixel width and height of your image as well as the resolution. Click “OK” and save your work.

How to change resolution in photoshop

If you want to know how to increase the resolution of an image in Adobe Photoshop, you’ll need to understand what resolution means for your image and how image size plays into the overall quality of the final product. Adobe Photoshop allows you to easily alter image resolution using the image-size dialog box, pixel dimensions, and other tools.

Image Resolution

You can increase the resolution of any image in Adobe Photoshop to make the image clearer and of HD quality. A high resolution in Photoshop will increase the overall quality of your image, and you can also alter the width and height, or resample the image for a better result.

With Adobe Photoshop, it’s easy to alter the resolution by increasing the number of pixels per inch in your image. What gets considered high resolution in Photoshop partially depends on the size.

Image Resolution in Adobe Photoshop

To change the document size, resolution, or resample an image are some of the things that the resize image Adobe Photoshop tools do well, and our step by step guide can help. This process applies to a variety of file types, including JPEG.

Changing the Image Size

How to resize an image in Adobe Photoshop starts with the Image menu, where you’ll select Image Size to open the image size dialog box. The shortcut Opt + Cmd + I for Mac devices or Alt + I for Windows devices will also get you to this dialog box to change document size.

How to change resolution in photoshop

Changes and Increases to Image Size

Once you have the proper image size dialog box open in Adobe Photoshop, you can choose the resolution in Photoshop you want for your photo from a list of presets, or you can use the Fit To menu and load a saved or custom preset.

How to change resolution in photoshop

You’ll also want to select the option “Do not constrain aspect ratio” on the Adobe Photoshop menu so the document size or width and height of your photo will change.

Remember the Resolution in Photoshop

The size dialog menu in Adobe Photoshop also allows you to set the number of pixels found in each inch of your photo, and there are a variety of different resolution options.

You can often leave the number of pixels as you find it, or use the resample image function instead of changing the pixels to see what the Photoshop resize image tool can create.

How to change resolution in photoshop

Select a Resampling Mode

The resample image mode helps Adobe Photoshop decide what algorithm it needs to add new pixels and change the image resolution, without changing the width and height or the size of the image, and the two best options are:

  • Bicubic Smoother
  • Preserve Details

The Bicubic Smoother often displays the best image quality after changing the image resolution while altering pixel dimensions or the number of pixels per inch. The high resolution of the resulting image is thanks to the Adobe Photoshop resample image mode, and a more significant amount of pixels.

How to change resolution in photoshop

Always Sharpen

Sharpening your image is still a good idea after you increase the image resolution or use the resample image function, and you’ll go to the Filter menu and select Sharpen and then Unsharp Mask. You can then drag the slider to alter an image without changing the pixels further. The pixel dimensions have already changed at this point

How to change resolution in photoshop

Adjusting the Image Resolution in Adobe Photoshop Elements

Adobe Photoshop is one of the more popular choices, but Adobe Photoshop Elements is a reliable tool for getting a high-resolution image, using the resample image tool or changing the image resolution to change the or width and height of your photo. Reducing the image size works in the same way, but with smaller overall pixel dimensions entered.

Select the Image menu and then Resize and Image Size from the Photoshop dropdown. Activate the checkbox on Photoshop for Resample Image to keep the current pixels dimensions and enter a new set of values for the resolution. Once you’ve completed this, Photoshop will take care of the rest and click on OK.

某些 Creative Cloud 应用程序、服务和功能在中国不可用。

The Image Size command in Photoshop includes a method to preserve details and provide better sharpness while enlarging images.

How to change resolution in photoshop

In addition, the Photoshop Image Size dialog box has been updated for ease of use:

  • A window displays the preview image from the resizing parameters.
  • Resizing the dialog box resizes the preview window.
  • The Scale Styles option is turned on and off from inside the gear menu in the upper right corner of the dialog box.
  • From the Dimensions pop-up menu, choose different units of measurement to display the dimensions of the final output.
  • Click the link icon to toggle the Constrain Proportions option on and off.

Resize images

How to change resolution in photoshop

Choose Image > Image Size .

Do any of the following to modify the image preview:

  • To change the size of the preview window, drag a corner of the Image Size dialog box and resize it.
  • To view a different area of the image, drag within the preview.
  • To change the preview magnification, Ctrl-click (Windows) or Command-click (Mac OS) in the preview image to increase magnification. Alt-click (Windows) or Option-click (Mac OS) to reduce the magnification. After clicking, the percentage of magnification briefly appears near the bottom of the preview image.

To change the unit of measurement for the pixel dimension, click the triangle next to Dimensions and choose from the menu.

To maintain the original ratio of width to height measurement, make sure that the Constrain Proportions option is enabled. If you want to scale the width and height independently of each other, click the Constrain Proportions icon to unlink them.

You can change the unit of measurement for width and height by choosing from the menus to the right of the Width and Height text boxes.

Do any of the following:

  • To change the image size or resolution and allow the total number of pixels to adjust proportionately, make sure that Resample is selected, and if necessary, choose an interpolation method from the Resample menu.
  • To change the image size or resolution without changing the total number of pixels in the image, deselect Resample .

(Optional) From the Fit To menu:

  • Choose a preset to resize the image.
  • Choose Auto Resolution to resize the image for a specific printing output. In the Auto Resolution dialog box, specify the Screen value and select a Quality . You can change the unit of measurement by choosing from the menu to the right of the Screen text box.

Enter values for Width and Height . To enter values in a different unit of measurement, choose from the menus next to the Width and Height text boxes.

The new image file size appears at the top of the Image Size dialog box, with the old file size in parentheses.

To change the Resolution , enter a new value. (Optional) You can also choose a different unit of measurement.

If your image has layers with styles applied to them, select Scale Styles from the gear icon to scale the effects in the resized image. This option is available only if you selected the Constrain Proportions option.

When printing a high-quality photo, you’ll want to make sure the image’s DPI is optimized.

DPI stands for dots per inch and refers to the number of physical dots per inch on a printed document. But when working on a computer — and using apps like Photoshop — we are measuring by PPI, which means pixels per inch.

Both acronyms are used to describe the clarity of a picture, but it’s important to understand that DPI is used for physical photos while PPI is the term for digital files.

The standard for printing an image is 300 DPI, but you may want to increase it for professional printers. It’s important to note that you need to work with a high-resolution photo in order to print a high-quality picture. Increasing the DPI of a low-quality image will not make it look better.

To convert PPI to DPI, it’s a 1:1 ratio, meaning that one PPI is the equivalent to one DPI. So if you want to print a photo that’s 10 inches wide at 300 DPI, your width in pixels will be 3,000.

Now this sounds like a lot of complicated calculations, but thankfully Photoshop can help simplify the process.

Here’s how to do it.

Check out the products mentioned in this article:

Adobe Photoshop Elements (From $239.88 at Adobe)

MacBook Pro (From $1,299.99 at Best Buy)

Lenovo IdeaPad 130 (From $299.99 at Best Buy)

How to change the DPI of an image in Photoshop

1. Open the Photoshop app on a Mac or PC and click on “File” in the top menu bar, followed by “Open…” to select your image. If you’re using a Mac, you can also drag the image over the Photoshop icon to quickly launch the app with your desired file.

2. Click on “Image” in the top menu bar, followed by “Image Size…” in the dropdown menu.

3. A window will pop up where you can adjust the PPI of your image next to where it says “Resolution.”

  • At the bottom of the pop-up screen, you’ll see that “Resample Image” is automatically checked off. This function automatically adjusts the pixel dimensions to correspond with the desired PPI and the image’s physical dimensions listed under “Document Size.”

4. When “Resample Image” is selected and you adjust the PPI, the pixel dimensions will also change in correlation to both the new PPI and existing document size. If the original document size isn’t in your desired dimensions, you can change that as well, which will in turn adjust the pixel dimensions based on the new actual size and the desired PPI.

5. Click “OK” once you’re done.

6. To save the changes, click on “File” in the top menu, followed by “Save” or “Save As…” The former saves over the original file while the latter allows you to keep both the original and the new file.

7. If you clicked “Save As…,” a window will pop up for you to select the location that you’d like to store the image. Once you’ve chosen where the photo will live on your computer, click “Save.”

Related coverage from How To Do Everything: Tech:

How to sharpen an image in Photoshop automatically, to reduce blurriness in your images

How to add text over an image in Photoshop, and adjust the font or color

How to make a custom GIF in Photoshop to share in texts and on social media

How to outline text in Photoshop to make your text stand out on a custom image

How to rotate an image in Photoshop in 4 simple steps

Insider Inc. receives a commission when you buy through our links.

How to change resolution in photoshop

How to change resolution in photoshop

Learn how to convert low to high resolution in Photoshop. If you have an image that contains various issues like its blurry, faded and the size of a particular image is also very small. Hence your first intent is to repair the image quality but once you start the enlargement process the pixels are exposed.

How to change resolution in photoshop

Convert Low To High Resolution In Photoshop

Consequently, the terrific key to solving this query is Photoshop. With the help of renowned Photoshop spectacular graphics software, individuals can easily tackle and convert low to high resolution in Photoshop. First of confirming the size and resolution of a meticulous image.

What is Resolution?

I elaborate resolution in a very plain, easy to understand lingo. Through resolution graphics, the software manages the quality of an image. The additional PPI – Pixel per Inch in resolution augment the quality of the image. This means the result is extra fine, sharper and detailed.

On the other hand as the Low resolution, may cause the distortion and pixelation in the image. Possibly your upshot is irresolute and weak.

Have you ever noticed small images, whenever you want to enlarge it for some reason there is a clear disturbance in (PPI) Pixel Per Inch and you can clearly analyze it in the shape of pixilation. This immediate 2 minutes tutorial is good enough to revive low-quality Images and increase image resolution.

Keep in mind every photo is different from others so, the result varies image to image. One cannot attain or fix 100 percent. But definitely, one can get better or perk up with this trick.

Another important thing is whenever you need to capture photos from your camera adjust the image size first. Furthermore, if you want to scan images try to scan with more DPI. Because when you increase the DPI you’ve got the quality prints result.

What Are PPI And DPI

I am trying to expound the major difference between PPI and DPI because still people are confused and they want to know what is PPI and what is DPI.

Actually, PPI stands for Pixels per inch which helps us to control the image resolution for adding more clarity in our digital image. On the other hand, DPI stands for Dots per inch which delineates the ratio of ink dots for actual printing objective.

Convert Low To High Resolution In Photoshop In 2 Minutes

Step 1

First, of open image in Photoshop, turn on the Zoom tool by pressing (Z) short key on your keyboard. At this moment, zooms your image couple of times. Now keep concentrating the more you zoom your object the more pixels are exposed.

Step 2

Make a copy of the Main layer go to >> Image Menu and click on >> Image Size and increase the Resolution up to 600 Pixels/Inch. Make sure Scale Styles >> Constrain Proportions and Resample Image options are ticked.

Step 3

Let’s move on to our next step. From the drop-down list choose Bicubic Smoother (best for enlargement) and press on Ok. Wow, the size of the object is increased nicely with improved pixels quality.

Now go to Filter Menu >> Other >> High Pass adjust the Radius up to 9.5 Pixels and Press Ok. One can obtain a radius setting as per the requirement of our image.

Step 4

To remove the extra gray color set Blend Mode to Vivid Light which helps you to enhance the image quality Right-click on your copied layer and click on Merge Down Option

Step 5

Again go to Filter Menu >> Blur >> Surface Blur and choose Radius >> 17 Pixels. In my case, the Threshold levels percentage is 15 Click on Ok. Surfaces blur filter straight away applied to your image within a few seconds.


Now compare before and after. My objective is to provide spectacular information that eradicates your problems in photo editing. I hope this tutorial is helpful to convert low to high resolution in Photoshop. Guys whenever you are in need to improve the image quality follow this simple trick. Ask your queries in the comments.

How to change resolution in photoshop

Adobe has been adding machine-learning and AI-powered features to Photoshop and Photoshop Lightroom. In March 2021, Adobe added “Super Resolution“—a way to enhance missing details in lower resolution files. Here’s how to use it.

What Does Super Resolution Do?

Super Resolution uses Adobe’s AI platform, Adobe Sensei, to double the horizontal and vertical resolution of an image. It quadruples the number of pixels so, in effect, it takes a 12-megapixel photo and turns it into a 48-megapixel photo.

Super Resolution is an evolution of Enhance Details, another machine learning filter that reduces image artifacts and enhances small details in your RAW photos—without changing the resolution.

In other words, Super Resolution makes the file big—and, if you’re using RAW files, Enhance Details makes sure it looks good. It still, however, works on other file types like JPEG, PNG, and TIFF.

Whatever file type you use, Super Resolution will convert it into a .DNG RAW file.

How to Use Adobe’s Super Resolution

Super Resolution isn’t a Photoshop feature: it’s an Adobe Camera RAW (ACR) feature.

Now, ACR is built into Photoshop and it’s what does all the image processing under the hood in Lightroom, but it’s technically separate which is why finding Super Resolution can be slightly tricky.

How to Open a Photo in Camera RAW

To use Super Resolution, you need to open the image in an ACR-powered editor. There are a few ways to do this:

  • If you use Lightroom, just open any image in your library in the Develop module.
  • If you use Photoshop and want to edit a RAW file, open the file as normal. ACR will open before the regular Photoshop editor.
  • If you use Photoshop and want to edit a non-RAW file, open Adobe Bridge and navigate to the file. Right-click and select “Open in Camera RAW”

Note: As of the time of publication, Lightroom hasn’t been updated to support Super Resolution, however, Adobe says it’s coming very shortly and it is available for Photoshop.

How to change resolution in photoshop

How to Apply Super Resolution

First, open the image you want to edit in an ACR editor.

How to change resolution in photoshop

Right-click anywhere on the image and select “Enhance”.

How to change resolution in photoshop

Check “Super Resolution” and you can see the effect in the “Preview” box.

If you like it, click “Enhance” and let ACR do its thing. It’ll take a few moments.

How to change resolution in photoshop

Once it’s done, you will have a duplicate file called something like “FileName-Enhanced.dng (2 of 2)” open as well. It will have twice the vertical and horizontal resolution of the original. (Up to 500-megapixels.)

What Is Super Resolution Good For?

Super Resolution uses machine learning to quadruple the resolution of your images better than existing algorithms. You can see some more comparisons on Adobe’s blog post announcing the feature.

However, there are still only a limited number of situations where this is useful. If you’re just uploading images to Instagram and Facebook, for example, it’s unlikely to have any effect. Where Super Resolution shows the most promise is:

  • Up-sizing older images and tightly cropped photos so you can make better prints.
  • Enhancing details in images you need to crop really tightly.

Otherwise, Super Resolution is a cool and interesting application of machine learning—but it’s not something you need to do for every photo you take.

How to change resolution in photoshopAn example Adobe uses to show how much better Super Resolution is. Adobe

  • Home
  • >
  • Photoshop
  • >
  • Can I lower the resolution of a single layer?

Copy link to clipboard

can I lower the resolution of a single layer, without lowering the resolution of the other layers in one psd file?

  • Follow
  • Report
  • All forum topics
  • Previous Topic
  • Next Topic

1 Correct Answer

How to change resolution in photoshop

How to change resolution in photoshop

Copy link to clipboard

Yes, but then the image on that layer would be smaller than the other images. It would be basically using transform to make the layer smaller. Other than putting the layer in a smart object and then resizing that image, there isn’t a way to reduce the resolution of one layer, and I can’t imagine why you would want to.