.img extension file is usually a bitmap file. The image in this file can either be a graphic bitmap or a disc image. The .img extension is used by image files on the disk as well raw dumps of files from a magnetic or optical disc. The actual format of the contents of the files depends on the disk file system where the image is created. This is because the raw image comprises of a sector based binary copy of the source disk like FAT, NTFS, CD, DVD or Floppy Disk. Just like an ISO file, a physical copy of the disc is not required to be inserted in the CD-ROM drive to play the disc media as it can be done with the help of the .img file copied onto the computer if it contains an image of the disc.
The .gz filename extension refers to the GZIP file format and compression/decompression utility of the same name which was initially released in 1992. It is the extension given to files compressed using the gzip utility. Unlike other compression tools of the time, gzip was originally intended to be used as a tool to compress a single file as opposed to multiple files or entire directories compressed as a single archive. As a work around, multiple files can be archived using the TAR archive file format, then that single TAR archive would then be compressed using the GZIP format. This would give the file a filename extension of .tar.gz.
FreeFileConvert uses tuned encoding for IMG to TGZ conversions, preserving clarity while trimming file size. Finished audio streams instantly across phones, tablets, desktops, and modern browsers without extra tweaks.
Upload IMG files from desktop, tablet, or cloud storage, queue multiple jobs, and let the converter finish autonomously. Return whenever convenient to download synchronized TGZ 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 TGZ audio with dependable progress tracking.
It is possible that different formats could be used for .img extension files created by using different disc imaging programs. Hence, it is necessary to do a compatibility check before using these .img extension files between the various programs to protect the file from getting corrupt or rendering it unusable for future use. In simple terms, it means that a .img extension file is an exact replica of a specific disk. It can be used to backup the hard drive to be able to recover the data later in case the hard drive fails or can be used to create a copy of a program installation disk for future use in case the disk is lost.
The GZIP format uses the DEFLATE algorithm for compression. A file in this format consists of a 10 byte header containing the version number, timestamp, and magic number. Other blocks include optional extra header blocks, the DEFLATE payload, and a CRC-32 checksum contained in an 8 byte footer.
Upload your archive file in the IMG format from your device, Dropbox, or Google Drive.
Select TGZ as the output format and click Convert. Adjust optional settings if needed.
Download the converted archive file. Each file stays available for up to 5 downloads.