PGM to PNG converter
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OnlineConvertFree provides free image conversion services without requiring any software installation. Easily convert your pgm files to png or any other format with just a few clicks.
How to convert pgm to png?
Step 1
Upload pgm-file
You can select pgm file you want to convert from your computer, Google Drive, Dropbox or simply drag and drop it onto the page.
Step 2
Select «to png»
Choose png or any of the other 200+ supported formats you'd like to convert to.
Step 3
Download your png file
Please wait for the conversion to complete, then click on the download button to obtain your converted file in the png format.
Best tool to convert pgm to png
Simply drag and drop your pgm files onto the webpage, and you'll be able to convert them to png or over 250 different file formats, all without having to register, provide an email address, or include a watermark.
As soon as you upload your pgm files, we instantly delete them. Converted files are then deleted after 24 hours. Furthermore, we ensure that all file transfers are secure through advanced SSL encryption.
You don't have to go through the hassle of installing any software. We handle all pgm to png conversions in the cloud, which means that none of your computer's resources will be used in the process.
Portable Gray Map Image
Extension | .pgm |
Category | 🔵 images |
Programs | 🔵 ACD Systems ACDSee 18 🔵 ACD System Canvas 15 🔵 Adobe Photoshop with plug-in 🔵 Corel PaintShop Pro X8 🔵 GIMP 🔵 Inkscape 🔵 Netpbm |
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. |
Developer | 🔵 Jef Poskanzer |
MIME type | 🔵 application/octet-stream |
Portable Network Graphics
Extension | .png |
Category | 🔵 images |
Programs | 🔵 Apple Preview 🔵 Microsoft Windows Photos 🔵 Adobe Photoshop CC 🔵 Corel Paint Shop Pro 🔵 Microsoft Windows Photo Gallery Viewer |
Main program | 🔵 Microsoft Paint |
Description | 🔵 .png (Portable Network Graphics) The .png format is a raster graphics file format that supports lossless data compression. It was created as an improved and non-patented replacement for Graphics Interchange Format (GIF). PNG files are widely used on the internet due to their efficient compression and support for transparent backgroundsThey are ideal for detailed, high-quality images and graphics with a small file size, making them a popular choice for web designers and photographers. |
Technical details | 🔵 The `.png` The `.png` (Portable Network Graphics) format is a widely used image file format known for its lossless compression and ability to handle transparency. Here are some technical details about the .png format: Lossless Compression: PNG uses lossless compression, meaning that it preserves all the image data during compression. This is in contrast to formats like JPEG, which are lossy and discard some information for smaller file sizes. Bit Depth: PNG images can range from 1-bit (black and white) to 48-bit color. It also supports 16-bit grayscale images. Transparency Support: One of the key features of PNG is its support for alpha channel transparency. This allows for varying levels of transparency in the image, from fully opaque to fully transparent, which is particularly useful for web graphics. Color Palettes: PNG supports truecolor (16 million colors) as well as indexed-color images, which use a palette of up to 256 colors. This makes the format versatile for different types of digital images, including photographs and graphics. Interlacing: PNG offers an interlacing feature (Adam7 interlacing), which allows an image to be loaded progressively. This means that a low-resolution version of the image can be displayed while the full image is being downloaded, which was particularly useful in the early days of the internet when connection speeds were slower. File Structure: A PNG file consists of a header, followed by several chunks of data. These chunks include information like the image's dimensions, color depth, palette (if used), and the image data itself. Gamma Correction: The format supports gamma correction, enabling it to better handle differences in how different displays render color brightness. Metadata: PNG files can include metadata such as textual information (e.g., title, author, description) and can be extended with custom metadata. Popularity and Usage: Due to its features, PNG is very popular for web graphics, icons, and complex images like maps or artworks. It's also used in applications that require high-quality images or transparency. No Native Support for Animation: Unlike formats like GIF, the standard PNG format does not support animation. However, an unofficial extension known as APNG (Animated PNG) adds this capability. Browser and Software Support: PNG is widely supported by all modern web browsers and image editing software, making it a universally accessible format for images on the internet. The PNG format was developed as an improved, non-patented replacement for GIF and as an alternative to the then-proprietary JPEG format. Its balance of quality, support for transparency, and lossless compression makes it ideal for many uses in web and graphic design. |
Developer | 🔵 PNG Development Group (donated to W3C) |
MIME type | 🔵 image/png |
FAQs on pgm to png Conversion
❓ How do I change pgm to png?
To get started, either pick a file you want to convert from pgm and select it or drag and drop it into the conversion tool. Next, select the desired format that you wish to convert your file to. Once you have selected the format, click the "convert" button and wait for the tool to finish converting your file.
⏳ What is the estimated time it will take to convert pgm to png?
Typically, image conversions only take a few seconds, so you can expect a speedy conversion when changing pgm to png.
🛡️ Can I trust OnlineConvertFree to convert pgm to png securely?
Absolutely! We take your security seriously, and guarantee the protection of your uploaded and converted files. No one will have access to your information since we delete all files once the conversion process is complete. You can trust that all types of conversions, including pgm to png, are 100% safe on OnlineConvertFree.
📱 Is it possible to convert pgm to png without having to install any software?
Yes, that's right! OnlineConvertFree doesn't require any installation, which means that you can convert any files, including pgm to png, on your computer or mobile device, completely online.
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