How to Convert Bitmap to JPEGs in Batches
Digital images come in many different formats. Digital cameras produce RAW or JPEG files, Microsoft Paint creates BMP files by default, web graphics are usually displayed as GIFs and programs like Photoshop have the ability to save in additional formats, such as PNG or TIFF.
No format is exactly alike. Each affects the picture's size, compression and quality differently.
Sometimes it necessary to convert a batch of pictures from one file format to another. For instance, Microsoft Paint images will be large, uncompressed BMP files. To upload or send these images through the Internet, they should be converted to a smaller, but high quality format. A JPEG file would be perfect in this situation. Converting a batch of images is an easy task that basic computer users can do. Many file converters are available online for download.
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Instructions
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Download and install the program "Free Batch Image Converter" from Download.com. This program will convert the BMP files to JPEG. A link is available in the Resources section.
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Create a new folder on the computer desktop and label it "BMP Source." Then, drag the batch of BMP files that are to be converted into this folder.
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Create another folder on the desktop and label it "JPEG Conversion." This folder will be the destination folder for newly converted pictures.
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Open the program. The icon title should be labeled "Freebic."
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Click the button next to the word "Source Folder" that has two dots in the Freebic program. This opens a window allowing a folder to be selected. Select the folder containing the BMP images.
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Click the button next to the word "Destination Folder" that has two dots in the Freebic program. This opens a window allowing a folder to be selected. Select the destination folder for JPG converted images.
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Enter a desired height and width of the newly converted images. To keep the images proportional, check the "Preserve aspect ratio" box and enter a width size. The program will automatically calculate a height size based on a value proportional to the width.
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Select or deselect the options proceeding the aspect ratio. This includes indicating whether the filenames should be lowercase and whether the filenames should use underscores. At the bottom of the window, select "Convert to JPEG file format." Then, move the slider to indicate the desired quality of the new images. Click "Convert."
The new JPEG files will appear in the JPEG Conversion folder.
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References
Resources
- Photo Credit Burke/Triolo Productions/Brand X Pictures/Getty Images
