The tiny open source application PosteRazor turns images or photos that you have on your hard drive into poster-size formats that you can print out afterwards.
It takes simple images, the resolution does not really matter, zooms in on them using an ingenious method to inflate the size to poster-size. Images are then saved as pdf files that you can print out and assemble to create your poster.
The application supports many different image formats, including the popular formats png, jpg, and psd, as well as more than twenty additional formats that you can load in to it.
When you first start the program you are asked to select an image from the local computer that you want to turn into a poster.
The image is displayed in the interface afterwards, along with its dimensions. If you are satisfied with the display up to this point click on next to start the configuration.
Here you are then asked to select the paper format and configure borders. All standard paper formats, like Din A4 or Din A3, are available for selection with options to select an entirely custom size.
Depending on the image and poster that you want to create, you may want to reduce the size of the borders to make the resulting poster look more as one piece, as borders may be visible otherwise and disrupt that experience.
To avoid this from happening, you can select an overlapping size for the poster. While this means additional work cutting the image out in the right way, or putting it together with those overlaps in mind, it offers a solution for the border issue.
You may then select the size of the poster, either in absolute measurements, or by selecting a specific amount of pages that you want the poster to be in. The more pages you select, the larger the resulting poster will become. It also means that you will have to print more pages.
Please note that the quality of the output depends largely on the source image file and the desired poster size. Pixels may become visible but that is usually not a problem unless you are standing right in front of the printout.
The actual poster is saved as a pdf document, which you then need to open in a pdf viewer to print it out.
Here is a short demonstration video by the makers of the program.
Posterazor is available for Windows, Linux and Mac systems. The Windows version comes as a setup and portable version. It also needs to be noted that the developers have made available the source code on the download page.
The application can be used to turn computer images into photos using nothing but a home printer and a computer. Since you are not limited in regards to size, you may create wall-sized posters with the help of PosteRazor if you want to.
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