Split Larger Image File into Multiple Smaller Files

A backup image file takes less space than an intact copy, but if the source data is huge in size, the image file can also be large. In this case, you may face following problems when trying to store the image file to a safe place:

  • The image file is too large to be stored in any of your storage devices. For example, if the image file is 6 GB, and you owns two 4 GB USB flash drives. You can apparently not store it in any of the USB. Instead, you may want to split the image into 2 image files at first.

  • You want to split an image file into several smaller fragments so as to separately store them to CD or DVD. Then a image file splitting tool would be necessary.

  • You want to store an image file larger than 4GB into a FAT32 partition, while the FAT32 partition only supports maximum file size of 4GB. Thus you have to split it into smaller-than-4GB ones to meet the storage requirement of FAT32 file system.

If you have similar problems, then AOMEI Backupper is a feasible solution allowing you to split a larger image file into smaller files

Best Free Backup Software Allowing You to Split Image File

AOMEI Backupper is a complete backup and restore program running in Windows. Its free edition, AOMEI Backupper Standard enables you to file backup, partition backup, system backup and disk backup in various modes and with  practical options. 

Image file splitting is one of the backup options allowing you to split a larger image file into several smaller ones. Thus you can freely customize the backup to fit in different storage devices, like CD, FAT32 partition, smaller USB drive and so on. 

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It only take several steps to create a backup and split the image file with AOMEI Backupper, here takes Partition Backup as an example:

1. Launch the software, select Backup and choose Partition Backup.

Partition Backup

2. Click Add Partition or Volume to specify the source data you want to backup.

Add Disk

3. Select a destination. If you want to back up it to a removable device like USB or DVD, insert it to the comptuer at first. 

Select Backup Destination

4. Click Options at the bottom, and in the popping up window, select Advanced > Splitting and choose an option in the drop-down menu.

Automatic: the split size depends on the file system of the destination storage device.
Customize size: input a proper value you prefer and the image will be split into this size. Note the minimum file size is 50MB. You can upgrade to Professional edition to enjoy it. 
Choose a predetermined size: choose the storage medium type in the drop-down menu. The program will split the image file to proper size to fit in corresponding medium.


5. Click Start Backup to run the task and wait for it to complete.


  • To adjust the image file size, you can also click Options > AdvancedCompresion to choose from None, Normal or High in the drop-down menu. The higher the compression level, the smaller a image file, and the longer it will take.

  • Before restoring from split image file, it's better to verify its integrity by image file checking

  • To view or make use of individual files in an backup without restoration, you can explore the image to mount it as a virtual drive.