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How to compress a photo or picture without losing quality in various ways? Compress JPEG file online

Very often there is a need to reduce the size of a JPG file - photos, scanned documents, other images.

Why do you need to reduce file size?

This allows you to significantly save disk space when storing archives and speed up the process of transferring image files by email. Often it is necessary to bring a photograph to the minimum volume required by some programs, above which photographs and drawings are simply not accepted. The first way to reduce the memory footprint of an image is to convert it to JPG format, which itself is already a compressed image. But this is not enough. Let's figure out how to reduce the size of a JPG file.

Reducing File Size in Paint.NET

The Paint.NET software product (not to be confused with the standard Paint graphic editor of Windows operating systems) is freely distributed on the Internet. It “weighs” a hundred times less than the widely used Photoshop, downloads quickly and takes up almost no disk space. The presence of a clear interface in Russian, the ability to quickly change the size, format and resolution of graphic files gives it the right to take its rightful place among your constantly used tools.

How to reduce JPG file size using this program? It’s very simple - launch the program, drag the file you are editing onto its working field with the mouse. In the main menu of the application, select "Image" - "Resize". In the window that appears, adjust the resolution according to your preferences. Make sure that the “Maintain proportions” option is checked. Click "OK".

To change the format and quality level of the picture, select “File” - “Save As” in the main menu, set a new name, select and click “OK”. Please indicate the picture quality level. When the level changes in the range of 95 - 100%, the visual perception of the image remains almost unchanged. This can be seen in the preview window to the right of the menu, where the final file size is also displayed. After selecting the required image quality (and volume) value, click “Save”. Job is done.

How to reduce the size of a JPG file in Photoshop

Adobe Photoshop application of different versions allows you to reduce the size of images without losing their quality. This is especially important when saving photos for publication online. After loading the photo file into the program, make corrections to its color rendering, contrast and saturation, if you consider it necessary. Then proceed to resizing: select the menu item Image -> Image Size. The current image dimensions will appear in the window. To change them, enter new values ​​in the Width and Height fields, you can only in one of them - the second value will change proportionally. Then select the "Save for Web" option from the File menu.

In this case, the application will independently optimize the photo for publication on the network, reducing its disk space at the dimensions you specify.

When saving a photo, select JPEG High. If you are satisfied with the resulting volume, save; if not, change the image quality settings with the slider at your discretion. After all the manipulations, save the photo under a different name - it is ready for publication.

Working with the PicPick editor

You can change or reduce the size of a JPG file with PicPick image capture. It is also freely available on the Internet. The capabilities of this application are wide. It allows you to capture the entire screen or part of it, add inscriptions and drawings to the image, combine different fragments of images, convert the image format and many other functions.

Resizing images is achieved as follows: upload a picture, for example, by selecting the Open menu item. In the Image menu, select Resize and in the drop-down menu, select Image Resize/Zoom. There are two options here: change the size by percentage (both larger and smaller) or change the number of pixels along the width or length of the image.

In the latter case, if the “Keep aspect ratio” item is checked, it is enough to change only one of the sizes, the other will change automatically. It is also possible to resize the image to one of the most common sizes by selecting the required one in the lower form window. Click OK. Save the result in the desired location, in the required format and under the name you need.

We hope that after reading this article, the question of how to reduce the size of a JPG file will forever be resolved and you will be confident that you will be able to perform this simple task with respect to your graphic files at any time.

Some sites allow users to upload photos of themselves, be it screenshots or avatars for their personal profile. The problem is that frequently uploaded images must not exceed a certain size - for example, no more than 300 pixels wide and 250 pixels long. A limit can also be set on the file size - no more than 3 MB.

But what to do if the image you need does not meet the requirements of the portal? There is no need to immediately rush to look for another image; If you know how to reduce the size of a JPG file, you can fit any image to any requirement. The very concept of “image size” can have two definitions, depending on what meaning the speaker puts into the words:

  • The physical size of the picture is height and width (measured in centimeters, inches, pixels).
  • The amount of space that the image file occupies on the media. Measured in kilobytes (megabytes).

The higher the quality of the picture, the more space it will take up on the disk. The same applies to physical size, so reducing the number of pixels and a slight reduction in quality will combine to produce maximum effect.

Using Paint

The standard Paint image editor in recent versions of Windows has undergone a significant transformation, becoming more functional and user-friendly in terms of interface. It is clear that it does not reach the functionality of specialized applications such as Photoshop, but it copes with basic tasks without difficulty. To reduce the size of a photo using Paint:


Working with Photoshop

Adobe's graphic editor provides users with a huge number of functions. You can, for example, install a font in Photoshop and make an inscription on the picture, completely change the image using simple tools, etc. It is clear that among such a variety of functions there is also the ability to simply and quickly change the image size.


Please note the following feature:

To manually specify both values, you must uncheck the “Maintain proportions” checkbox.

Deterioration in quality

If you cannot reduce the physical size of the image even further (for example, the inscriptions become unreadable), and you need to remove another hundred kilobytes from its volume, then you will have to resort to degrading the quality. To do this, you need to change the image settings:

  1. Open the graphic file through Photoshop.
  2. Expand the "File" menu and select "Save As".
  3. Check the format (*.jpg) and click “Save”.

A small JPEG Options window will appear in the editor window. In the Image Options field, you can see a slider that allows you to adjust the quality.

In digital display, you can vary this indicator on a scale from 1 to 12; you just have to set the desired value.

For example: a file with the best quality weighs 800 KB, with average – 150 KB, with low – 60 KB.

Don't be too zealous about degrading quality: experimentally determine when the amount of space occupied on the media becomes low enough and save the changes. There are even more ways to reduce file size in the video tutorial:

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Or simply change the weight of the image, you need to know how to reduce the size of the jpg file.

This photo format is the most common.

JPG compression is supported by all devices and allows you to save image information without loss or distortion.

The weight of a jpg file can be found in the photo properties, and the volume of the picture can be easily changed using editing programs and online services.

Method number 1. Reducing the size of a picture in Paint.NET

Paint is the simplest standard program for editing raster and vector images. Available for all users of Windows operating systems.

Main tools available in the application:

  • adding inscriptions;
  • filling elements;
  • trimming, pasting;
  • copying fragments, etc.

After changing the width and height of the photo, the size changes.

Follow the instructions to reduce the size of the Paint image:

  • Right-click on the desired image and select Edit. The photo will automatically open in Paint in editing mode;
  • On the main toolbar, find the resize button and click on it. A dialog box will open. To reduce the size of the final file, you need to change the size to a smaller one.
    You can edit using percentages or pixels. By saving, you will reduce the size of the image.

Remember! After changing the width parameter, you need to change the height proportionally. Otherwise, the picture may become too stretched and disproportionate.

Method No. 2. Resizing in Photoshop

The photo file size can also be reduced in a professional raster image editing program - Photoshop. Follow the instructions:

  • Open the application and import the required graphic file for further work;
  • Find the Image tab on the main toolbar, click on it. Select Image Size from the drop-down list, as shown in the figure below;

  • Change the image dimension parameters (width and height), and also make sure that the checkbox next to Maintain photo proportions is checked;

  • Try reducing the photo by 10-15 percent. Thus, its final weight will also decrease.

Method number 3. Using MS Office programs

The test Word processor version 2010 and earlier versions have an image compression function. This function has been removed in the latest versions of the program.

Add a picture to the document page, then in the tab that appears, select “Open with”, and then the MS Picture Manager application.

In the window that opens, click on the “Image” tab and select “Compress image”. The higher the compression ratio, the smaller the final file size will be.

Save the resulting changes.

Important! After compression, the quality of the illustration may deteriorate.

Method number 4. Using online services

An excellent web service for working with photos is the resource irfanview.com. It allows you to work with a huge number of different image formats.

To reduce the size, you can open the image menu and edit its height and width.

Also in the resizing window, you can select additional parameters for better compression: sharpening, sharpening filter, special keys for reducing/increasing the size and changing the image resolution.

The saving option can also reduce the size. The best option for setting them up is shown in the figure below.

This window appears while the final image is being saved.

Optimal saving options

There are situations when you need to reduce the size of a jpg file, or, simply put, compress it. In this article we will look at several ways to reduce .jpg images

There may be several reasons for reducing the size of a jpg file:

  • Takes up less disk space
  • Site pages load faster on the site
  • Some services impose restrictions on the maximum image size.jpg

Let's look at a specific example. Let us have the following image

The image size is 477 KB and has a width of 1600 by 1012 pixels. Let's reduce it in several ways.

1. Reduce the size of .jpg using Paint

This is the most affordable way to compress an image. Its most important advantage is that this graphic editor is installed on all computers as a default program that operate on the Windows operating system. To get into the Paint image editing environment, just right-click on the image and select “open with Paint” from the drop-down menu.

The window that opens contains information about the original size of the image, which is displayed in pixels and percentages. Practice shows that it is easier to change jpg in pixels. Adjust the horizontal parameters you need, and don’t forget to leave a checkmark next to “Keep proportions” so that the height changes automatically and the drawing is not distorted.

Confirm the action with the OK button and save the result.

Here we have achieved the expected result:

Our jpg image is now 404 KB (up from 477) and has a resolution of 1200 x 759 pixels instead of 1600 x 1012 pixels. The result is so-so. Taking into account the fact that the quality deteriorates after clicking the "Save" button in Paint.

2. Reduce JPG file size using Paint.NET

The Paint.NET program itself is very easy to use due to its clear Russian-language interface. In addition, it takes up very little space and can be downloaded online for free.

In order to get into the Paint.NET image editing environment, you need to right-click on the image, and select the Paint.NET program from the “Open with” drop-down list.

In order to change the image of a jpg file, you need to select the “Resize” item in the “Image” menu, which is located at the top of the window.

After these steps, a window will open in which you will need to configure the file resolution.

Attention! Don't forget to leave a checkmark next to "Maintain proportions" so that the image is not distorted.

This time we reduced the file size by as much as half. Confirm the changes with the OK button and save the image.

Now the jpg file size is only 83 KB, not 477, has an extension of 600 x 380 pixels, without losing image quality (reduced by 83%). Is this still not enough? 83 KB out of 477 is not the limit.

The size of this image is only 18 KB and has an extension of 260 by 160 pixels. This compression option is perfect for forums that do not support the ability to install heavy avatars.

The methods we discussed above are good; similar actions can be done in Adobe Photoshop or PhotoFilter, but the result will be the same.

But what if you don’t want to download any programs to your computer, but do everything online? There are even a lot of services to choose from that allow you to edit images decently.

3. How to reduce jpg file size online on the Internet

This option is perfect if you don’t have any graphic editors at hand, but you need to reduce the size of the photo right now. There are a lot of such editors on the Internet now. You can reduce a jpg file through the online service compressjpeg.com.

The site greets us with a simple user interface. We see the "Download" button. Upload the image we need.

This graphic editor has such an easy and understandable user interface. Using the slider located to the right of the image, you can adjust the compression quality of our image (the more you compress the image, the more it loses its quality).

1. Quality - 100%. Image without any changes. File size - 478KB.

2. Quality - 50%. The image is no longer as clear, but has not suffered any radical changes. The new file size is 155 KB.

3. Quality - 10%. The image is of terrible quality, the pixels are so large that the image seems to be “glued together” from squares. The size of this image is 33 KB.

We select the compression method we need, then confirm the changes with the “SAVE” button, and download the finished file with the corresponding button at the top.

To summarize, I would like to say that the best program for reducing the size of a jpg file is the Paint.NET program, since it provides the largest list of settings for image compression, and in addition to this useful function, it has a lot of other useful tools.

However, even the most successful frames do not pass the test on your favorite sites: the size or weight of the image exceeds the maximum limit. And users are storming the search engine, trying to figure out how to reduce the size of a jpg file.

But how can you reduce the size of a jpg file without ending up with a photograph in which the pixels are clearly visible? First, it’s worth understanding what weight and image size are.

Image resolution and size

Users who do not constantly work with graphic editors often confuse such basic concepts as resolution and image size. Trying to figure out how to reduce the size of a jpg file, many people change the resolution and vice versa.

The size of a photograph or image is the physical manifestation of the picture, that is, the size in centimeters, millimeters, inches, etc.

Image resolution is a clearly defined number of pixels per inch. It is measured linearly - the number of points in one straight line.

Image resolution data is provided by camera and photographic equipment manufacturers: from 320x240 to 7680x4800. The higher the camera resolution, the clearer and better quality the photos or video clips will be.

It is worth noting that when the physical data of the image changes - the size - the number of pixels will remain constant, but they will stretch over a larger space. Thus, the clarity of the picture will be lost. By reducing the size of the photo, but without changing the resolution, you can make the photo better.

How to reduce the size of a JPG file?

However, how can you change a file without resorting to programs? One of the easiest answers to the question of how to reduce the KB size of a *.jpg file is to enlist the help of resources that carry out image modification online. But do not forget that such sites usually contain an incredible amount of advertising. Almost every click leads to a third-party resource.

When choosing a site that will help you resize a photo, you should approach it carefully. First, search on resources where users share reviews about various things, and choose those that are awarded the most stars or “pluses.”

However, due to the fact that the resizing work is performed automatically, the quality of the photos may noticeably suffer.

Photoshop: a quick way to resize an image

One of the most popular graphic editors, Photoshop, is most often used by ordinary users to apply filters and resize photographs and images. Many people don’t even have questions about how to reduce the size of a jpg file in Photoshop.

To reduce the physical characteristics of a file, you must first open it in a graphic editor. Next, open the “Image” menu and select “Image Size”. You can also use the keyboard shortcut Alt+Ctrl+I to open the dialog box.

To change the physical characteristics of a picture, you need to change the width and height of the photo. The icon that combines the indicators allows you to maintain the proportions of the base file. These indicators are usually measured in centimeters or pixels, but there are also percentages, inches, millimeters, points and picas.

The next step is saving the changes. This can be done by selecting “Save As” from the “File” menu or using the hotkeys Ctrl+S. Next, the graphic editor will ask you to select parameters: format and quality, or in other words, the weight of the image.

Resizing a picture in Paint

Owners of personal computers that do not have a graphics editor installed can resort to the help of the Paint program preinstalled in the Windows operating system.

The answer to the question of how to reduce the size of a jpg file in Paint is simple. First of all, you need to open the file in the program. Next, select “Resize and skew” from the drop-down menu or use the keyboard shortcut Ctrl+W.

A window will appear asking you to change or tilt the image. Physical parameters can be changed: horizontally or vertically. To achieve better quality, it is recommended to check the “Maintain proportions” checkbox.

And the last step is to save the resulting image.

Changing resolution in Photoshop

On many sites where you need to add an image to your profile, there is a limit not only on the file size, but also on its resolution. For example, the weight of an avatar should not exceed 100-150 kilobytes. In such cases, changing the physical parameters of the photo is unlikely to help.

In order to change the weight or resolution of a photo in Photoshop, you need to open the file in a graphics editor and click on the “Image” menu. Next, find the “Image Size” item.

Below the already known parameters that determine the width and height, there is the “Resolution” line. This parameter is measured in pixels per inch, or pixels per centimeter.

Changing photo weight in Paint

Unfortunately, the built-in Windows Paint program did not include such a feature as “reduce the weight of a *.jpg file while maintaining the size.” This editor only allows you to change the size of the photo and its tilt.

However, if the source file has an extension other than JPG, then you can still find a loophole and change the image size. The fact is that formats such as BMP, RAW and others are heavy.

To change the size, just open the image in the editor and select “Save As” from the menu and change the format to JPG. In most cases, the weight of the photo will immediately decrease several times.