PNM to PNG converter
Choose file to convert
OnlineConvertFree offers a hassle-free image conversion service that doesn't require any software installation. You can easily convert your pnm files to png or any other desired format, all with just a few simple clicks.
How to convert pnm to png?
Step 1
Upload an pnm-file
You can select the pnm file you wish to convert from your computer, Google Drive, Dropbox or just drag and drop it onto the page.
Step 2
Select "to png"
Choose png or any other of the 200+ supported formats that you wish to convert to.
Step 3
Download your png file
Please wait for the conversion to be completed, then click on the download button to get your converted file in the png format.
The security of your files is our priority
Recognizing the crucial significance of our users' data security, we have put a number of measures in place to guarantee reliable file conversion without the jeopardy of information leakage or privacy infringements.
Data Encryption
Every piece of information uploaded to our platform undergoes SSL encryption, safeguarding privacy during the transmission process.
Secure Storage
Upon completion of the conversion, the files are retained on secure servers for a duration of 24 hours and are then automatically obliterated, preventing any third-party access.
Safe Scripting
We regularly screen our file conversion tools for any malicious code or vulnerabilities, mitigating the risk of potential cyber threats.
Best tool to convert pnm to png
Converting pnm to png is fast and easy
Just drag and drop your pnm files onto the webpage, and you'll have the capability to convert them to png or over 250 different file formats, all without the need to register, provide an email address, or include a watermark.
Safe pnm to png Conversion
Immediately upon uploading your pnm files, we delete them without delay. Converted files are then removed after 24 hours. Additionally, we ensure that all file transfers are secure through advanced SSL encryption.
No Software Installation Required
There's no need to go through the inconvenience of installing any software. We conveniently handle all pnm to png conversions in the cloud, which implies that none of your computer's resources will be consumed in the process.
| Extension | .pnm |
| Category | 🔵 images |
| Description | 🔵 The Portable Any Map (PNM) format is a collection of image file formats designed for portable images. Each image essentially represents a pixel value map that can encode data in grayscale or color. There are three main types of files in the PNM format family: Portable BitMap (PBM), Portable GrayMap (PGM), and Portable PixMap (PPM). |
| Technical details | 🔵 PBM format uses binary pixel data. Each pixel is represented by a single bit, where 0 indicates black and 1 represents white. The pixel data for each row is organized as a bit sequence, padded to a full byte. Conversely, the PGM format handles grayscale pixel data. It represents each pixel with a single byte. The pixel data is arranged in rows, with each row of pixel data grouped together. PPM format deals with color pixel data. Each pixel is represented by three bytes, each indicating the red, green, and blue components of a color. This pixel data is also organized in rows, with each row grouped together and represented by sets of three bytes. Finally, note that PNM files can be easily converted between these three formats. Furthermore, specific software tools can convert PNM files to other image file formats, and vice versa. |
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 | 🔵 Portable Network Graphics, or .png, is a raster graphics file format. Simply put, it's a digital image format. PNG files are popular online because they use lossless data compression and support transparent backgrounds. |
| Technical details | 🔵 Let's look at the technical details of the .png format: PNG compression is lossless, meaning that all the image data is kept during compression. This is different from JPEG, which uses lossy compression and loses some image information to make smaller files. PNG images can range from basic black-and-white (1-bit) to very detailed images with 48 bits of color. They also support 16-bit grayscale images. A key feature of PNG is its support for alpha channel transparency. This lets you create images with varying degrees of transparency, from completely opaque to completely transparent. This is very useful for web graphics. PNG supports a full range of colors (truecolor), allowing for up to 16 million colors. It also supports indexed-color images, which use a palette of up to 256 colors. In short, PNG files are widely used because of their efficient compression, support for many different color palettes, and the ability to handle various transparency levels. These features make them perfect for many web applications. |
| Developer | 🔵 PNG Development Group (donated to W3C) |
| MIME type | 🔵 image/png |