First released in 1998, the Djvu file format is an alternative open file format for scanned document storage. It is specifically targeted at documents that possess text, vector graphic drawings, photos, and colored images. The format's main selling point is its high quality authoring with minimum storage space making it popular in the distribution of magazines, comics, and ebooks. This fact places it in direct competition with the pdf format by Adobe Systems. The text layer in the Djvu file format supports optical character recognition which allows for text selection, copying, and pasting from .djvu files to other text processing applications. Free browser plugins are available for most major internet browsers which allows hosted .Djvu files to be opened directly through compatible browsers.
JPEG is abbreviated as the Joint Photographics Experts Group. It is a file extension that uses irreversible compression technology which helps in reducing the data size for storing data easier and advocates the seamless handling and transmission of content. A JPEG most commonly aids in storing digital images via "lossy compression" and includes images rendered by means of digital photography. Lossy compression does not let users restore the image file to its original quality after compression, once sized down. Some loss of the data stored in the image file occurs during the compression process. In simpler terms, when an image gets compressed, there's a reduction in its quality, thereby losing some of the graphical/visual data information; data reduction generates lower file sizes.
FreeFileConvert uses tuned encoding for DJVU to JPEG 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 JPEG 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 JPEG 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.
JPEG files store meta information of the images. Meta information includes the technical details of the images such as color spaces, color profiles and the height and width of images. Adobe RGB and sRGB are examples of JPEG color profiles. JPEG file compression is mostly used in the compression of photographs and life-like paintings which involve a nice range of tone and ample variations in color. However, the JPEG file extension is not suitable for multiple edits and isn't reliable for compressing highly technical data other than visual content. Applications, where JPEG formats cannot be used, include scientific data, technical processes, and medical imaging functions. Each time an image undergoes JPEG compression, a drop in the resolution quality occurs. The best way to avoid this is to save the image in a lossless format and carry out its distribution by exporting it as a JPEG file. Lossless formats allow users not to lose out on image quality and restores all the pixel information when returned to its original size. This means you can revert the image back to its original size and quality, unlike lossy compression.
Upload your document file in the DJVU format from your device, Dropbox, or Google Drive.
Select JPEG 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.