HomeImage ConverterPNM ConverterConvert PNM to PNG

Free Online PNM to PNG Converter

Or drag and drop your files here to upload.
A maximum of 20 files can be uploaded at once.

Please note: Your PNM file, once uploaded to our server will be deleted 15 minutes after upload so please download your converted PNM file before this time.

How to Convert your PNM to PNG Online?

Here are 2 simple steps to convert your PNM to PNG using our fast and free PNM converter tool.

Upload your PNM file

Click the "Upload a PNM File" button, then select a PNM to upload. The maximum file size is 100MB.

Download your PNG

Click the download link to receive your PNG file.

File format information for PNM and PNG

Full NamePortable anymap
Mime Typeapplication/octet-stream

A PNM file, which stands for Portable Any Map, is a common file format used in computer graphics and image processing. It's a simple and versatile format that can store images in a raw, uncompressed form, making it easy to work with programmatically. PNM files are commonly used for tasks such as image manipulation, image conversion, and data exchange between different software applications. One of the key advantages of PNM files is their platform independence, as they can be read and written by a wide range of software on various operating systems.

PNM files come in three main variants: PBM (Portable Bitmap), PGM (Portable Graymap), and PPM (Portable Pixmap). PBM files represent binary images, where each pixel is either black or white. PGM files store grayscale images, allowing for various shades of gray. PPM files, on the other hand, support full-color images by representing each pixel with red, green, and blue color components. These variants provide flexibility for handling different types of images, from simple line drawings to high-quality photographs.

While PNM files have the advantage of simplicity and compatibility, they are not suitable for efficient storage of large, high-resolution images due to their lack of compression. In such cases, other formats like JPEG or PNG are preferred. Nonetheless, PNM files remain valuable in scenarios where simplicity, ease of processing, and compatibility are more important than file size efficiency, such as in certain image processing tasks or as an intermediary format during image conversion.

Full NamePortable Network Graphics
Mime Typeimage/png
Opens WithPaint.Net, Photoshop

A PNG (Portable Network Graphics) file is a widely used image format that was developed as a replacement for the GIF format, which had limited color support and was subject to patent issues. PNG files use lossless compression, meaning they retain all the original image data without losing quality. This makes PNG ideal for storing graphics, logos, and images with sharp lines or text, as it avoids the artifacts associated with lossy compression formats like JPEG. PNG supports various color depths, including 24-bit true color and 8-bit grayscale, allowing it to represent a wide range of colors and shades.

One of the key features of PNG files is their support for transparency. PNG supports an alpha channel, which allows parts of the image to be transparent, making it perfect for creating images with irregular or non-rectangular shapes that can blend seamlessly into different backgrounds. This transparency feature is particularly valuable for web design and graphic editing tasks, as it facilitates more flexible and visually appealing compositions.

While PNG files provide excellent image quality and transparency support, they tend to have larger file sizes compared to some other image formats like JPEG. This can be a drawback, especially for web use, where smaller file sizes are preferred for faster loading times. However, the advantages of PNG in terms of lossless compression, high-quality images, and transparent backgrounds make it a popular choice in various contexts, including web design, digital art, and image editing.

Information for converting from PNM to PNG

Our PNM imaging tool will accurately convert your PNM file into a PNG image file using our high quality internal 2D rendering to create your final PNG ready for download. Your PNM file will be analyzed pixel by pixel in order to produce the most accurate conversion possible.

Frequently Asked Questions

How can I convert my PNM file to PNG?

First click the "Upload..." button, select your PNM file to upload. Your PNM file will be uploaded to our servers. When the PNM to PNG conversion has completed, you can download your PNG file straight away.

How long does it take to convert my PNM to PNG?

We aim to process all PNM to PNG conversions as quickly as possible, this usually takes around 5 seconds however this can be longer for certain files, so please be patient.

How accurate is the PNM to PNG conversion?

We aim to provide the best conversion experience. Our tools are under constant review and development with new features being added every week.

Is there any loss in quality when converting my PNM file?

If you are converting your PNM file to a format that implements lossy-compression then yes, the quality will be reduced however the loss in quality is usually not noticeable and can result in much smaller file sizes.

Will the conversion affect the resolution of my converted PNM file?

No. When converting your PNM file our tool will not perform any resizing of your image and the resulting file will be the same resolution as your uploaded PNM file.