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Convert PPM to HDR
Online & free tool to convert PPM files to HDR

1) Input file

Choose source file(s) to convert:

0 of 5 files added (up to 1000 MB combined)

2) Output format

Select a target format to convert to:

3) Convert

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Fine-tune conversion output with format-specific controls.

No advanced controls available for this format.

1) File URL

Choose file URL to convert:

2) Output format

Select a target format to convert to:

3) Convert

By clicking you agree to our terms

Fine-tune conversion output with format-specific controls.

No advanced controls available for this format.

1) Cloud Service

Choose a cloud service provider:

2) Output format

Select a target format to convert to:

3) Convert

By clicking you agree to our terms

Fine-tune conversion output with format-specific controls.

No advanced controls available for this format.
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PPM

Portable Pixmap Image File

The .ppm file extension is used for Portable PixMap format files and is intended to be an intermediate format that can be used in the development and conversion of other file formats. This format was specifically designed so that it could easily be exchanged between various platforms. It is very simple but not very storage efficient. Before the PPM format was introduced, Jef Poskanzer invented the PBM format in the year 1980 for transmission of monochrome bitmaps as ASCII text in email messages. He also developed a tool library for easy conversion of the PBM files to other graphical formats and vice versa. This library was called Pbmplus and was released in 1988. Later Poskanzer developed the PPM format along with the PGM format and the requisite tools that were added to Pbmplus.
HDR

High Dynamic Range Image File

A .hdr extension file is a High Dynamic Range image format that is also known as HDRI or a Radiance HDR format. A raster image or a digital photo with dark shadows or washed out areas can be rectified using HDRsoft to enhance the color and improve the brightness level. The Multiple pictures having different exposures can also be combined to create one image with an even distribution of color with the HDR software. As compared to standard digital imaging or photographic techniques, HDR imaging uses a high technology to improve the picture quality of an image by increasing its clarity, brightness and luminosity.

Trusted conversion quality

FreeFileConvert uses tuned encoding for PPM to HDR conversions, preserving clarity while trimming file size. Finished audio streams instantly across phones, tablets, desktops, and modern browsers without extra tweaks.

Seamless workflow

Upload PPM files from desktop, tablet, or cloud storage, queue multiple jobs, and let the converter finish autonomously. Return whenever convenient to download synchronized HDR results on any device you rely on.

Batch support for teams

Process up to 5 files sized 1000 MB per batch without splitting queues manually. Mixed-format uploads convert together, producing consistent HDR audio with dependable progress tracking.

About PPM

How to open PPM files

Adobe Photoshop
File Viewer Plus
Corel PaintShop Pro
GIMP

Technical details

A .ppm extension file comprises of two parts which include the header and the image related data. The header, in turn, is distributed into three parts that are demarcated by line feeds. The first line comprises of the magical PPM identifier which can either be…

A .ppm extension file comprises of two parts which include the header and the image related data. The header, in turn, is distributed into three parts that are demarcated by line feeds. The first line comprises of the magical PPM identifier which can either be P3 for the ASCII version or P6 for the binary version, and the next line has the image's height and width displayed in ASCII characters and the last line indicates the maximum color value of the pixels. The image data formatting is dependent on the magical identifier, given in the first line of the header. Each pixel consists of 3 decimal values ranging from 0 to the specified maximum value written in ASCII characters. The 0 in the decimal values denotes that the color is not present or is turned off and the maximum value denotes that the color is at its maximum level. Conventionally the image data is stored in a left to right and top to bottom order with each pixel being stored as a byte. The usual RGB (Red ñ Green ñ Blue) order is followed to store the components.

About HDR

How to open HDR files

Adobe Photoshop
Corel Paintshop Pro
Lightroom

Technical details

A .hdr extension file has three section which are the header, a resolution string and the pixel data. The header starts with an identifier that the file is an image file and is followed by lines that provide information regarding the assignments and the series…

A .hdr extension file has three section which are the header, a resolution string and the pixel data. The header starts with an identifier that the file is an image file and is followed by lines that provide information regarding the assignments and the series of programs and commands used to generate the image.

How to convert PPM to HDR

STEP 1

Upload your image file in the PPM format from your device, Dropbox, or Google Drive.

STEP 2

Select HDR as the output format and click Convert. Adjust optional settings if needed.

STEP 3

Download the converted image file. Each file stays available for up to 5 downloads.

More PPM and HDR options

Convert other files to HDR

Explore popular source formats that convert beautifully into HDR.

Convert PPM to other formats

Need a different output? These conversions transform PPM into other widely used formats.

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