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PGM to JPEG converter
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How to convert pgm to jpeg?How to convert jpeg to pgm?
Select pgm file, which you want to convert, from your computer, Google Drive, Dropbox or drag and drop it on the page.
Convert pgm to jpeg
Select jpeg or any other format, which you want to convert.
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Wait till your conversion process will be completed and click download converted jpeg file.
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Just drop your pgm files on the page to convert jpeg or you can convert it to more than 250 different file formats without registration, giving an email or watermark.
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Portable Gray Map Image
|Description||PGM file format was developed alongside the open-source Netpbm package of graphics program. Developed by Jef Poskanzer in 1988, PGM was a format for storing grayscale images and supporting bitmap. The PGM file format is forward compatible with recent graphics editing software like Corel PaintShop Pro X4, ACDSee Photo Manager 14, and ACD Systems Canvas 15. Being a plain text format, PGM can be edited using any available text editor, and thus survives the quintessential changes that image files undergo when transmitted via email. PGM files come in two types, only differentiated by magic numbers – P2 and P5, which helps graphics editor software identify the data encryption standard.|
|Technical details||Portable Gray Map Images can be stored away with each pixel taking up memory space of either 8 or 16 bits. There are two major sections in the plain text string of a PGM file – the header and image data. The header starts with the magic number, followed by characters indicating image width, image height, maximum grayscale shade value – never exceeding 65.536, all sandwiched by whitespaces. Though used mainly on the UNIX-based operating system, being open-source has earned the PGM file compatibility with macOS and Windows.|
ACD Systems ACDSee 18
ACD System Canvas 15
Adobe Photoshop with plug-in
Corel PaintShop Pro X8
Joint Photographic Experts Group
|Description||JPEG – is a popular graphic file format, which is characterized by a high degree of compression, which leads to a decrease in image quality. It uses the technology of encoding smooth color renditions, providing the ability to reduce the amount of data frequently during the image recording. Because of the small size, it is requested by the owners of websites, allowing you to save the traffic effectively. It is also frequently used in memory cards of digital video cameras. The JPEG algorithm is optimally suitable for compressing photographs and pictures in which realistic scenes with little contrast of colors are present. It is not recommended to use this format to compress drawings and various graphics since a big difference between several near located pixels provokes visible artifacts.|
|Technical details||The procedure for compressing the digital images in JPEG format is carried out in several stages. First, the photo is transformed into a color space YCbCr. Then it is divided into squares to determine the upper range of the color spectrum. Finally, the colors and brightness are coded. JPEG uses a "lossy" compression system and discrete cosine transform technology. The format acts simultaneously as the standard of ISO and the International Telecommunication Union. The file compression ratio is in the range from 10:1 to 100:1. In this case, the reduction in image quality can vary from insignificant to substantial.|
Corel Paint Shop Pro
|Main program||MS Paint|
|Developer||The JPEG Committee|
❓ How can I convert pgm to jpeg?
Firstly, select a pgm file you want to convert or drag and drop it. Secondly, select jpeg or any other format you want to convert your file to. Then click convert and wait until your file is converted
⏳ How long should I wait to convert pgm to jpeg?
Images conversion usually takes a few seconds. You will convert pgm to jpeg very quickly.
🛡️ Is it secure to convert pgm to jpeg on OnlineConvertFree?
Sure! We delete your uploaded and converted files, so nobody has access to your information. All types of conversion on OnlineConvertFree (including pgm to jpeg) is 100% safe.
📱 Can I convert pgm to jpeg without software installation?
Absolutely! OnlineConvertFree doesn’t require installation. You can convert any files (including pgm to jpeg) online on your computer or mobile.
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