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last changed Friday, September 7, 2018

DP celebrates our 36,000th unique title!

"American Missionary - 1882.05"

Join in the celebration going on here.

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Site Concept

Distributed Proofreaders provides a web-based method to ease the conversion of Public Domain books into e-books. By dividing the workload into individual pages, many volunteers can work on a book at the same time, which significantly speeds up the creation process.

During proofreading, volunteers are presented with a scanned page image and the corresponding OCR text on a single web page. This allows the text to be easily compared to the image, proofread, and sent back to the site. A second volunteer is then presented with the first volunteer's work and the same page image, verifies and corrects the work as necessary, and submits it back to the site. The book then similarly progresses through a third proofreading round and two formatting rounds using the same web interface.

Once all the pages have completed these steps, a post-processor carefully assembles them into an e-book, optionally makes it available to interested parties for 'smooth reading', and submits it to the Project Gutenberg archive.

How You Can Help

  • Register with the site as a volunteer
  • Donate to the Distributed Proofreaders Foundation.

Registered volunteers may contribute to Distributed Proofreaders in several ways including proofreading, "smooth reading" pre-released e-books to check for errors, managing projects, providing content, or even helping develop improvements to the site. Volunteers may also join other members of our community in our forums to discuss these and many other topics.

Volunteering at Distributed Proofreaders

It's easy to volunteer at Distributed Proofreaders. Simply register as a volunteer. Once you've confirmed your registration by e-mail, you'll receive an introductory e-mail with basic instructions on how to log in and use the site. Then, you're ready to sign in and start learning to proofread or visit the smooth reading page to pick an e-book to read! Wherever you go, you'll find lots of information to help you get started. Please try our Walkthrough for a preview of the steps involved when proofreading on this site.

There is no commitment expected on this site beyond the understanding that you do your best. Spend as much or as little time as you like. We encourage you to proofread at least a page a day and/or smooth read a book as often as your time allows, but it's entirely up to you.

We hope you will join us in our mission of "preserving the literary history of the world in a freely available form for everyone to use."

Distributed Proofreaders regrets that we are unable to verify court-ordered community service because our system cannot adequately record time spent participating.

Current Progress

gold star 36,865 in Completed.

These books have been processed through our site and posted to the Project Gutenberg archive.

silver star 1,923 In Progress.

These books are undergoing their final checks before being assembled into a completed e-book.

bronze star 656 in Proofreading.

These books are currently being processed through our site; sign in and start helping!

Our community of proofreaders, project managers, developers, etc. is composed entirely of volunteers.
346 active users in the past twenty-four hours.
620 active users in the past 7 days.
1,116 active users in the past 30 days.

Questions or comments? Please contact us at

Thank you for supporting DP! You can also support the site by making a donation to the non-profit Distributed Proofreaders Foundation.

Recently Completed Titles

  • "Encyclopaedia Britannica 11th Ed. Vol. 09; "Ethiopia" to "Evangelical" {F2 skipped}"—Encyc. Brit. Co. (English)
    PG #35473
  • "The Journal of the American-Irish Historical Society (Vol. II)"—Murray, Thomas Hamilton (English)
    PG #58485
  • "De sobremesa, crónicas #4"—Benavente, Jacinto (Spanish)
    PG #58484
  • "Perry's Saints; or, The Fighting Parson's Regiment in the War of the Rebellion"—Nichols, James Moses (English)
    PG #58480
  • "Comenius and the beginnings of educational reform"—Monroe, W. S. (English)
    PG #58483
  • "Ben Hur {P3 skipped} {F2 skipped}"—Wallace, Lewis (Italian)
    PG #58479
  • "Sexual Life of Primitive People"—Fehlinger, H. (English)
    PG #58475

Recently Begun

  • "Round about a pound a week"—Pember Reeves, Maud (English)
  • "Precepts in Practice (1887)"—A. L. O. E. (A Lady of England) (English)
  • "The Delmonico Cook Book; How to Buy Food, How to Cook It and How to Serve It [1890]"—Filippini, Alessandro (English)

Distributed Proofreaders was founded in 2000 by Charles Franks to support the digitization of Public Domain books. Originally conceived to assist Project Gutenberg (PG), Distributed Proofreaders (DP) is now the main source of PG e-books. In 2002, Distributed Proofreaders became an official PG site. In May 2006, Distributed Proofreaders became a separate legal entity and continues to maintain a strong relationship with PG.