Discover duplicate e-Books in your collection

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Over the years you may have downloaded the same book many times. Books from Project Gutenberg for example come with cryptic filenames like PG5200.MOBI so it's hard to tell what you have in your collection. You may also have the same book in many different formats, e.g. both in PDF, MOBI and EPUB.

i-DeClone uses author and book title information to identify and compare e-Books using a fuzzy AI algorithm. If your books have good tag information, any duplicates will be found.

Multiple book downloads

Applies to

Step by step instructions:

➀ Connect devices to scan

If you want to scan external disks, connect them, or just scan your PC folder contents. Click on Start scan toolbar button to begin. Then click Start new project to setup scan settings from scratch.

➁ Scan options

Set the scan category to e-Books and the folder to search to whichever folder you keep your books, or something generic like My Documents or your entire PC

Set the scan mode to Find similar files and the tolerance percent level. You may have to experiment with this number a few times (use revise scan command) to find the best level, especially if your books vary too much in size.

If you want to discover the same books in various formats as well (EPUB,AZW,MOBI,PDF...) switch to Advanced property page and clear the option Files must have same extension. Note that e-Books cannot be compared by text content, only by author/title tags. If your book collection is mostly PDFs, you may have better results using document text comparison scans.

All set, click Start scan and wait for the results.
  scan options dialog

➂ Mark and remove duplicates

Use the checkboxes to mark duplicate items for removal, then remove them to clean up space. Use Mark wizard to choose the originals (which will be kept) depending e.g. on their folder location. Finally click Clean-up button to start deleting the marked duplicates. This is a standard procedure explained in detail in the documentation

Similarity comparisons are only as good as the available Author and Title tag information in your books. If essential tags are missing or they are all set to Unknown author and TITLE, it would be next to impossible to discover similar books.

Try it out for yourself:   DOWNLOAD FREE TRIAL
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