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FreeFileConvert uses tuned encoding for DJVU to WBMP conversions, preserving clarity while trimming file size. Finished audio streams instantly across phones, tablets, desktops, and modern browsers without extra tweaks.
Upload DJVU files from desktop, tablet, or cloud storage, queue multiple jobs, and let the converter finish autonomously. Return whenever convenient to download synchronized WBMP results on any device you rely on.
Process up to 5 files sized 1000 MB per batch without splitting queues manually. Mixed-format uploads convert together, producing consistent WBMP audio with dependable progress tracking.
The file format has a three pass compression technique in which single scanned images are divided into three separate images and compressed individually. The images are separated into background, foreground, and mask images. The Djvu file format then makes use of IW44, a wavelet based compression algorithm, to compress background and foreground images while the mask image is compressed using JB2 encoding.
The wbmp file format only supports a color palette of black and white which aids in keeping file sizes at the minimum possible. Binary integers are used to differentiate pixels of opposing colors. The file structure consists of several fields including the type field which represent the type of image, a fixed header of 1 byte in size, a width and height field to define the pixel resolution of the file, and finally the data field which holds the image data.
Upload your document file in the DJVU format from your device, Dropbox, or Google Drive.
Select WBMP as the output format and click Convert. Adjust optional settings if needed.
Download the converted image file. Each file stays available for up to 5 downloads.