Step 1
Add PNM Images
Drag and drop one or multiple PNM files, or click to choose them from your device.
Convert PNM to PNG Online
Change one or multiple PNM images to PNG directly in your browser. Keep the original dimensions or resize the batch by pixels or percentage before downloading.
Drag and drop PNM images here
or click to browse
Output format: PNG
How to Convert PNM to PNG
Convert and optionally resize your PNM images in three steps:
Step 2
Choose Size and Convert
Keep the original dimensions, set a width and height, or scale every image by percentage. Then click 'Convert All'.
Step 3
Download PNG Files
Save converted PNG images individually or download all completed files together in a ZIP archive.
Learn more about PNM and PNG
Compare the formats, common uses, compatibility, and ways to open each file type.
What is pnm file format
PNM (Portable Any Map) is a family of image formats that includes PBM, PGM, and PPM. PNM is a flexible format that supports monochrome, grayscale, and color images. It’s often used in scientific and academic environments where raw, uncompressed images are needed for further analysis or processing.
How to open pnm files
PNM files can be opened with software like GIMP, ImageMagick, and Netpbm utilities. These tools allow for viewing, editing, and converting PNM files into more common formats like JPG or PNG. PNM is supported by many scientific and industrial image processing applications due to its versatility.
What is png file format
PNG is a lossless raster image format that supports alpha transparency. It is commonly used for logos, interface graphics, screenshots, diagrams, and images with sharp edges. Photographic PNG files are often larger than comparable JPEG or WebP files.
How to open png files
PNG files are supported by modern browsers, desktop and mobile image viewers, design software, and photo editors. Its broad compatibility makes PNG a common choice for transparent web graphics.
Focused Image Format Conversion
Choose a source and destination format, add your images, and convert them without navigating a complex editing application.
Files Stay in Your Browser
Conversion runs locally on your device, so source images are not uploaded to an Imglarger server.
Convert Multiple Images Together
Add several files of the selected input format and process them with the same output and resize settings.
Resize During Conversion
Keep original dimensions, enter a target width or height, or scale the whole batch by percentage.
Individual or ZIP Download
Save completed images one by one or package the converted batch into a single ZIP archive.
No Account or Installation
Use the browser-based converter without registering an account or installing desktop software.
Free Online Image Converters
PNM to WEBP Converter
Convert PNM images to WEBP in your browser with batch processing and optional resizing.
PNM to JPG Converter
Convert PNM images to JPG in your browser with batch processing and optional resizing.
PNM to JPEG Converter
Convert PNM images to JPEG in your browser with batch processing and optional resizing.
Frequently Asked Questions
Find clear answers about using this Imglarger online image tool.
Yes. You can convert PNM images to PNG without creating an account or installing desktop software.
No. Image conversion runs locally in your browser, so the source files are not uploaded to an Imglarger server.
Yes. Add multiple PNM files, apply the same optional resize settings, convert the batch, and download results individually or as a ZIP.
No. Format conversion does not grant new copyright or commercial-use rights. Your ability to use the PNG output depends on the rights and license of the original image.
The page does not state a fixed limit, but practical capacity depends on image dimensions, file count, browser support, and available device memory. Use smaller batches if processing slows down.
Not always. Compression, transparency, animation, color depth, metadata, and multi-frame content may change when the destination format does not support the same features. Review important results before use.