Convert .HDR into .PDF Files - Fast, Free and Secure. We also have information of .HDR and .PDF Files extensions on this page.
- Information about HDR |
File extension |
hdr |
File category |
Raster Image file |
Stands for |
High Dynamic Range |
Developer |
HDRsoft |
Overview |
These files are also termed as Radiance HDR or HDRI. This format is used to store raster images or digital photos. In this, there is a grid of pixels where every pixel depicts a solo color within the image. Additionally, it has the ability to enrich the color and bring brightness to the pictures. Furthermore, it works well while processing the dark shadows and also on the washed-out areas of a picture. Hence, it is very useful to capture real-world scenes that have high brightness or direct sunlight and as well as extremely shady area or fainted nebulae. These images are the result of numerous different and narrow range exposures of the same matter. |
Technical description |
HDR images offer the same luminance(an amount of light that is either emitted from or passes through or reflected from a particular area) that of the human visual system. ‘Stops’- Exposure Value differences are used to measure the dynamic range of photography. To double the amount of light, there should be an increase of one exposure value or one stop. Contrary, to decrease the amount of light to half of its value, there should be a decrease of one EV or one stop. Consequently, the darkest parts of shadows require high exposures when something in detail is to be revealed and low exposures are needed when there is a high level of brightness. It uses bracketing which means several shots are taken of the same subject using varied camera settings. Then these images are merged using a photo manipulation program to produce a single image. |
Links |
wikipedia.org |
- Information about PDF |
File extension |
File category |
Document file |
Stands for |
Portable Document File |
Developer |
Adobe Systems |
Overview |
PDF is a format which stores documents that can include text with distinct fonts and images. The text that is present in it is of static or fixed format which is just like an image and it remains exactly the same even if we open this file using other programs, hardware and different operating systems. That is why it is recommended to convert the file into this format before printing or transferring, so, that the arrangement of the lines remains the same. Thereby, the output that is generated is always a printer-ready. These files are editable and can be amended using various editors. Several files can also be merged and compressed online. It does not only support Adobe Acrobat Reader but also other similar programs. These files can be sent, saved and viewed easily using phones, computers or tablets. |
Technical description |
There is a vast horizon of features that are available in PDFs. The content in it can have logical structuring elements, annotations, rich media, digital signatures and 3D computer graphics data (U3D); etc. Although, it is a 7-bit ASCII (American Standard Code for information interchange), yet, it may contain binary content as well. This file starts with a header which indicates how bits are used to encode information, succeeded by the version of the format. Furthermore, it is a subset of COS i.e. Carousel object structure, which expands to eight primary objects named as- Boolean Values (true or false), numbers, strings, names, arrays, dictionaries, streams and the null object. These files can also be password protected for security reasons. |
Links |
wikipedia.org |