Optimizing images for the JPEG format
- Introduction to Photoshop Elements
- Workspace and environment
- Fixing and enhancing photos
- Adding shapes and text
- Guided edits, effects, and filters
- Working with colors
- Working with selections
- Working with layers
- Creating photo projects
- Saving, printing, and sharing photos
- Keyboard shortcuts
The JPEG format supports 24‑bit color, so it preserves the subtle variations in brightness and hue found in photographs. A progressive JPEG file displays a low-resolution version of the image in the web browser while the full image is downloading. JPEG image compression is called lossy because it selectively discards image data.
A higher quality setting results in less data being discarded, but the JPEG compression method may still degrade sharp detail in an image, particularly in images containing type or vector art. Artifacts, such as wavelike patterns or blocky areas of banding, are created each time you save an image in JPEG format.
Therefore, you should always save JPEG files from the original image, not from a previously saved JPEG. Original image (left), and optimized JPEG with Low quality setting (right) The JPEG format does not support transparency. When you save an image as a JPEG file, transparent pixels are filled with the matte color specified in the Save For Web dialog box.
To simulate the effect of background transparency, you can match the matte color to the web page background color. If your image contains transparency and you do not know the web page background color, or if the background is a pattern, you should use a format that supports transparency (GIF, PNG‑8, or PNG‑24).
JPEG is the standard format for compressing photographs.
- Open an image and choose File > Save For Web.
- Choose JPEG from the optimization format menu.
- To optimize to a specific file size, click the arrow to the right of the Preset menu, and then click Optimize To File Size. Enter a number in the Desired File Size text box, and select either Current Settings, which optimizes for the current settings, or Auto Select GIF/JPEG, which automatically determines whether JPEG or GIF is the better format.
- Do one of the following to specify the compression level:
- Choose a quality option (Low, Medium, High, and so on) from the pop‑up menu under the optimization format menu.
- Click the arrow in the Quality menu and drag the Quality pop‑up slider.
- Enter a value between 0 and 100 in the Quality box. The higher the Quality setting, the more detail is preserved in the optimized image, but the larger the file size. View the optimized image at several quality settings to determine the best balance between quality and file size.
- Select Progressive to display the image progressively in a web browser; that is, to display it first at a low resolution, and then at progressively higher resolutions as downloading proceeds. Some browsers do not support progressive JPEGs.
- To preserve the ICC profile of the original image in the optimized file, select ICC Profile. Some browsers use ICC profiles for color correction. The ICC profile of the image depends on your current color setting.
- If the original image contains transparency, select a Matte color that matches the background of your web page. Transparent areas in your original image are filled with the Matte color.
- To save your optimized image, click OK. In the Save Optimized As dialog box, type a filename, and click Save.
: Optimizing images for the JPEG format
What is the best image resolution for web in Photoshop?
How to resize images After spending hours planning and styling your shot, getting the lighting just right and adding the final touches in post production, the next step is to upload your images to your online portfolio or social media. Part of this process is resizing your images for web. Here I answer the most common questions when it comes to resizing images and break down the simple steps for resizing images in Photoshop (as well other popular photo editing softwares). I cover this in far more detail in our ”, but these are just the basic steps. As file sizes steadily increase with advancing technology (some of the images I shoot on my Hasselblad H6 can be upwards of 600MB), there’s often a need to reduce file sizes. In this post, I’m going to share how I resize and reduce the file size of my images specifically for use on my and social media. The terms ‘image size’ and ‘file size’ are easily confused, but it’s important to understand the difference. Image size: File size refers to the dimensions of the image (the width and height) and is measured in pixels, inches or centimetres. File size: This refers to the amount of space an image uses on your computer, hard drive or memory card. This is measured in Kilobytes (KB), Megabytes (MB) or Gigabytes (GB). Regardless of what software you’re using to, there are a few key things you’ll need to adjust to change the image and file size. Below are the key points you need to consider when it comes to reducing the file size of an image: File format: Most websites and social media platforms accept JPEG, PNG or GIF files, though I tend to stick to JPEG. A new format for web images is, This format can be converted by using a website plugin or content delivery network from the JPEG images you upload. File size: The recommended image size for web use is between 1000 and 2500 pixels (on the longest edge) while the recommended file size is no more than 500KB. Keep in mind where the image will be used and what size container it will be placed in. If the image is to be viewed on retina display, it should be resized to twice the size of the container. This will guide you in sizing your image. Adding images that are too large may negatively impact the load speed of your website. Resolution: DPI and PPI do not influence the web display of an image, they are only relevant when printing images. Colour profile: I recommend sticking to the sRGB colour space for using images online. I share my exact image dimensions and talk you through finding the right balance between image quality and file size in this post production class. Preparing images for web in Photoshop can be done in just a few simple steps.1. Image size To start, you’ll need to change the image size. To do this, go to Image > Image Size. Once you’ve changed the width, height, resolution and resample settings (you can see the new image size at the top of the dialogue box) click OK.2. Export Once you’ve resized your image, go to File > Export. Here, you can choose either Export As or Save for Web (Legacy), 
There are two options for exporting images in Photoshop: ‘Export As’ or ‘Save for Web’. NOTE: Save for Web is the method many users may already be familiar with, but Adobe also introduced the Export As feature in Photoshop CC 2015. For those unfamiliar with either way, both allow you to do basically the same thing (though the newer Export As option does have a few extra features). 
The original image at quality 100. 
Resized to quality 10, banding appears and overall quality is reduced. If you skipped step one, you can also change the dimensions of you image and resample settings here too. Export As also allows you to adjust the ‘Canvas Size’ of your image (this is something you can’t do with Save for Web ). Next, you can choose whether to embed the metadata of the image and what colour space you’d like. Once you’ve changed the relevant settings, all that’s left to do is click Export, select where you’d like to save the image to and click ‘Save’. Remember, you can use the preview window to see how each adjustment influences the overall image. This can be particularly useful when adjusting the quality. You can also see the image size on the left hand side of the dialogue box (along with the file type and image dimensions). This updates as you make changes and is very useful if you’re aiming to get your image down to a particular file size. It’s also worth noting that this process could be automated using Actions. Once you’ve made the necessary adjustments to the image you want to upload, go to File > Export. This will open your image(s) in the export window, where you’ll see custom options similar to those in Photoshop. 
Exporting images using Lightroom is a similar process to that in Photoshop. Previously exporting images in Lightroom opened a new dialogue box (shown above), where you could specify a number of customisations, including: export location, file naming, file settings, image sizing, output sharpening, metadata, watermarking, and post-processing. It’s worth noting that these export functions are still available if you’re using Lightroom Classic. In the newer versions of Lightroom, the export function is much simpler. To export your image, go to File > Export. This will open a new window, where you can select the file type, dimensions and quality. You can also choose from further options, which include metadata, file naming, output sharpening and colour space. Once you’ve made the desired changes, click ‘Export Photo’, choose the destination where you want to save the image and click ‘Export’. If you’re resizing images to a certain size, you can see the file output size at the bottom left of the window (shown below). 
is a popular editing tool for photographers and, unlike Adobe softwares, it is available for a once-off fee. Developed by Skylum, Luminar is a bit of a mix between Photoshop and Lightroom, allowing you to work with layers and masks while also offering a number of filters and preset adjustments. To resize images, go to File > Export. This will open a dialogue box where you can name your image and select the file destination. You can then select ‘Low’, ‘Medium’ or High’ sharpening (or ‘None’). To resize the image, select which option you would like to change from the Resize dropdown menu and enter the new dimensions accordingly. Then, select the Colour space, Format and Quality you want. Once done, click ‘Save’. 
Exporting images in Luminar. 
Luminar’s Export functions allows for resizing and sharpening. is a free photo open-source editing software considered by many to be a good alternative to Photoshop or Lightroom for those wanting to make adjustments to their images. Although it doesn’t offer nearly as many features as Photoshop, it does offer an impressive range of tools (though it does come with a steep learning curve). To start, go to Image > Image Scale. This is where you would change the width and height of the image. Once done, click ‘Scale’. Next, go to File > Export As. This brings up the Export Image dialogue box. Here you can set what you want you file name to be and where you want to save it. You can also choose the file format by clicking ‘Select File Type’. Then click ‘Export’. This will bring up another dialogue box where, depending on what your file format is, you are able to make adjustments such as the quality of your image and what metadata you want to include. To finish, click ‘Export’. 
GIMP is another free alternative to Photoshop or Lightroom that allows you to resize images. These are just a few of the softwares you can use to prepare your images for web. Of course, you can also use your camera editing software too (most camera manufacturers offer a free photo editing software which will offer basic features for this) if you don’t have access to these other softwares.
What is the best image size for SEO?
As Google recommends in its Advanced SEO resource, ‘Large images need to be at least 1200 px wide and enabled by the max-image-preview:large setting, or by using AMP.’ Do not use your logo as the image.
Is 300 DPI okay for web?
Firstly, I know this is a long post, but it was necessary. I am making a website where images will be available on web, but they can also be saved by users and printed. So I was wondering how much DPI should I choose. I decided to google it out. But I am super confused right now, because I am getting completely different answers to this question. Use Case: – Adobe photoshop file (.psd) – High resolution photograph – 1000 px by 1000 px – Saved as,jpg – Upload to website as well (file size not an issue) – Photo can be saved via website and printed There are 4 different websites I found giving me 4 different answers. Website 1: 300 DPI Print – 72 DPI URL: http://www.vsellis.com/understanding-dpi-resolution-and-print-vs-web-images/ “Print: 300dpi is standard, sometimes 150 is acceptable but never lower, you may go higher for some situations.” With examples of 300dpi and 72dpi. Website 2: 72 DPI Web – 72 DPI = 300 DPI Print – 72 DPI > 300 DPI URL: https://daraskolnick.com/image-dpi-web/ This author shows an example of how 72 DPI and 300 DPI look when printed. And guess what, the 72 DPI image looks bigger. How??? Please search for: “Remember the three images I showed you above with different DPI values that look exactly the same on the web? Here’s what they’d look like printed:” 72 DPI – https://daraskolnick.com/daraskolnick/wp-content/uploads/2015/03/72-231×300.png 300 DPI – https://daraskolnick.com/daraskolnick/wp-content/uploads/2015/03/300-232×300.jpg Website 3: 300 DPI Print – 72 DPI “300 DPI is usually a good rule of thumb.” URL: https://graphicdesign.stackexchange.com/questions/95/what-dpi-should-be-used-for-what-situations Website 4: 72 DPI 412 x 324 pixels, 7 dpi, prints 58 x 46 inches 412 x 324 pixels, 72 dpi, prints 5.7 x 4.5 inches 412 x 324 pixels, 720 dpi, prints 0.57 x 0.45 inches URL: http://www.scantips.com/no72dpi.html Sorry, but I don’t understand what is going on here. Someone please care to explain?? Thanks in advance! PS. Researching about this confused me even more. Haha.
What is the best image sizing for web?
Best image size for websites – Pixel width: 2500 pixels is perfect for stretching full-screen across a browser in most cases. Any image smaller than that might get cut off or appear blurry if it needs to fill the browser width. Image size: The best overall (pixel) size of your images depends on your use case, e.g., background images need to be bigger than a blog post image.
What is the best picture ratio for website?
For the best visual results, we recommend using images with a square shape or 1:1 aspect ratio.
Is optimizing image sizes will help your site faster?
Importance of Optimizing Images on Website – The importance of images in connecting users to your products has been proven. If your website takes more than 3 seconds to load, users are more likely to abandon it, which will drastically increase your bounce rate, and eventually affect your conversions.
Why is image optimization important? Here are the answers – Image optimization helps in improving page load speed, boosts websites’ SEO ranking, and improves user experience. Let’s study the importance of optimizing web images in detail: Improves Page Load Speed Page load speed is the amount of time taken by a web page to load completely.
It depends on many factors ranging from your website host to website layout and design. The websites having less than 2 seconds load speed are most loved by its users. So, if you are optimizing 64% of your website’s weight, which is images, you will be improving your website speed.
This gives your website visitors a faster experience, thus more users would interact with your product and services. There are many tools which can help you in analyzing your page load speed such as Google’s PageSpeed Insights, Web Page Test, and ImageKit’s Website Analyzer, which will give you complete insights about your web page.
Click here to download the infographic illustrating 20+ stats on how speed affects your website. This infographic was made by Hosting Tribunal and the original blog on Hosting Tribunal talks in detail about impact of load speed on your website, This is Google’s Page Speed Insight Tool. It checks the page load speed on mobile and desktop devices and suggests you some recommendations. Here you can see that Image Optimization is also one of the suggestions to improve page load speed. Website Analyzer tests the given URL and lets you know the scope for image optimization. Improves SEO Ranking Yes, in 2010, it became clear to all of us that page load speed is a ranking factor. Google doesn’t love slow websites just like its users. Marketing Leaders such as Moz and SemRush have also published their insights about page load speed,
Google rolled out this update in the year 2010 in its Webmasters Blog which reads, “Like us, our users place a lot of value in speed — that’s why we’ve decided to take site speed into account in our search rankings.” So, it is clear that the faster websites rank better in the search results as compared to slower ones.
Every digital marketer understands the importance of search ranking in today’s world. Who doesn’t want to get the top rankings for its website pages? And one of the factors for this is the load speed of your web page. Thus, image optimization holds a great significance here. A graph showing the correlation between page speed and google search position. Source: https://backlinko.com Boost Conversions So, if your search ranking improves, it means you can capture more users and possibly get more conversions. Page load speed is directly related to SEO ranking and conversions. An infographic showing how website performance affects shopping behavior Image Source: https://www.kissmetrics.com/ Enhance User Engagement A happy customer is not a myth, definitely not for those websites which are providing a great user experience. An infographic showing the impacts of page load speed on the overall website performance. Source: https://www.hubspot.com/ It has been stated in many studies that users are more likely to leave those websites which are slow. The web pages which load in 2.4 seconds experience 24% bounce rate. An illustration of how users react to the page load speed. Source: https://www.hubspot.com/ In this digital world, every factor related to your website performance matters. And the expectations of visitors are only going to increase with time. One can not ignore the benefits of optimizing images,
- These benefits are not restricted to the page load speed and SEO ranking only.
- Image optimization is capable of boosting up your conversion and revenue numbers.
- With ImageKit’s intelligent real-time image compression and resizing, along with built-in global CDN, you can easily optimize images on your website or app.
Sign up for the free plan now and deliver a perfect visual experience on your website. Do share your thoughts and experience with our product in the comments section below. In the subsequent post on image optimization, we will cover various techniques for image optimization in more details with practical example.
Do large images affect SEO?
Best image SEO practices – If you are new to image SEO or need guidance, follow these steps to add SEO-friendly images to your web content.
Add at least one image. The best practice for image SEO is to upload at least one graphic or image on the page. Images show search engines that your web page is engaging and offers valuable content to searchers. Since photos make content easier to understand and scan, it’s more likely to be read or even shared. Use a compressor to reduce image sizes. Website speed has the biggest impact on image SEO’s ability to help your page rank and gain traffic. It’s an important factor; site speed will not only impact the user’s ability to move from one web page to another; it’s an active ranking factor, too. If your pages load slowly, Google will not rank them well. Use PageSpeed Insights for an in-depth assessment of the elements that could be hindering your page’s loading speed.
Improperly-sized images are often the culprits behind slow-loading pages. Since page speed and SEO are closely connected, image compression is an important factor of image SEO.
Scale images to improve page load times. Page load time is an important factor to consider your website’s SEO of value. Using larger images affect the user experience, causing Google to penalize your website ranking. Sizing an image can make a difference between a quick-loading page and a slow-loading one quickly abandoned by users. With image sizing, make sure that the actual size and the display size of the images are close; otherwise, you’ll be damaging the site speed if you upload unnecessarily large images. Choose high-quality images. Images will be more interesting and engaging to web visitors if they are high-quality. If you can, create a custom graphic that is unique to your website so you can stand out in the image searches. Keep in mind: many users click through images to view the image on your website. So, publish content with optimized images to gain higher website traffic. Use appropriate image file sizes. Large images slow down website load times. Instead of giving your users a bad experience (which results in poor long-term SEO results), resize your image files.
What size should a website be for SEO?
General Rules of Thumb for Page Size – Ideally, you want to keep your HTML DOM page size to around 100 kb or less, depending on your niche. Pages could be larger in some niches; in ecommerce, for example, it’s not uncommon to see pages around 150kb-200kb, depending on how many product images are on the page.
- You don’t want to get too large, because then you begin negatively impacting the user experience and could be missing out on opportunities to get a ranking boost with good Core Web Vitals scores.
- But cutting page size without an eye to user experience could result in your page not being as useful as your competitors’.
Balance is key. If you are looking for any tools for checking HTML page size, the following tool at SEO Site Checkup is a good one.
How do I reduce the size of a JPEG without losing quality?
Reduce JPEG file size by compressing it – Compressing photos and other JPEG files will create much-valued space on your computer. In addition, it makes it easier to email the files or store them on a portable drive. For the web, compression of JPEG files assists in speeding up upload times to social media or your Content Management Systems like WordPress or Shopify.
Go to TinyIMG JPEG compressor on your computer Simple drag and drop images from your computer into the drop area. You can add up to 10 images at a time to reduce file sizes (3MB max size per image) TinyIMG tells you the amount of space you have saved after reducing the file sizes Download the file size reduced JPEGs to your computer, either one at a time or all together
The beauty of online tools like TinyIMG is that it reduces file sizes while maintaining the quality of the image. The best part? You don’t have to change the image’s dimensions to reduce the file size of an image, And if you’re a proud Shopify store owner, you can even automate your JPEG file size optimization with the TinyIMG app or compress your images manually in the dashboard.
How do I resize an image in HTML without losing quality?
How to resize & crop image to fit an element area? – So far, we have discussed how to resize an image by specifying height or width or both of them. When you specify both height and width, the image is forced to fit the requested dimension. It could change the original aspect ratio.
Background image object-fit css property