Many popular sites are very demanding about the parameters of the image stored on their servers, and even reduce the weight of uploaded photos on their own. However, some sites do not have special services for compressing images, so they have a limit on the size of the graphic file offered for downloading. Thus, sometimes it may be necessary to reduce the image parameters.
Each graphic file has its own parameters: dimensions and weight. Usually the file weight is calculated in kilobytes or, if the image is large and of good quality, in megabytes. You can use inches, centimeters, and millimeters to calculate dimensions, but the Internet is usually used to calculating the length and width of an image in pixels.
The site where you plan to upload a photo may require you to have a picture that either has a weight of no more than a certain number, or will satisfy the required pixel values, and often both.
To compress the image yourself before uploading, you can use special programs that allow you to reduce the size of the photo without losing quality.
Paint
The graphics program Paint, built into every Windows system, allows you to reduce any picture by the percentage or pixels you need.
To compress a photo using Paint, right-click on the file's icon and select the "Modify" option in the context menu. Then click on the item "Resize" and enter the parameters you need in the field. Do not forget to check if there is a check mark next to the "Maintain proportions" option, otherwise Paint will deform the image, compressing it only on one side.
Photoshop
With the help of the popular Photoshop editor, you can compress any photos without losing quality. To do this, open the file in the program and in the "Image" menu select "Image size". A window should open allowing you to compress the graphic file to the required length and width parameters.
In addition, by changing the length and width of the photo to the desired number of percentages or pixels, Photoshop will show the resulting image weight in megabytes. If the weight of the file, even after being reduced, turned out to be large enough, then you can try to compress it by adjusting the quality through the "Save As" menu item.
Other applications
To compress graphic files, you can download a special free program that can quickly reduce photos to specific sizes, such as Light Image Resizer. With its help, you can not only change the parameters of the file, but also apply your logo or convert the image to any graphic format: from standard jpeg to.
There are a lot of similar programs, so you can easily choose the right one.
