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  2. OpenStax - Wikipedia

    en.wikipedia.org/wiki/Openstax

    OpenStax textbooks follow a traditional peer review process aimed at ensuring they meet a high quality standard before publication. Textbooks are developed and peer-reviewed by educators in an attempt to ensure they are readable and accurate, meet the scope and sequence requirements of each course, are supported by instructor ancillaries, and are available with the latest technology-based ...

  3. Open textbook - Wikipedia

    en.wikipedia.org/wiki/Open_textbook

    Open textbook. An open textbook is a textbook licensed under an open license, and made available online to be freely used by students, teachers and members of the public. Many open textbooks are distributed in either print, e-book, or audio formats that may be downloaded or purchased at little or no cost. [1]

  4. Open educational resources - Wikipedia

    en.wikipedia.org/wiki/Open_educational_resources

    Open educational resources (OER) [1] are teaching, learning, and research materials intentionally created and licensed to be free for the end user to own, share, and in most cases, modify. [2][3] The term "OER" describes publicly accessible materials and resources for any user to use, re-mix, improve, and redistribute under some licenses. [4]

  5. Best Free PDF Editors of 2023 - AOL

    www.aol.com/best-free-pdf-editors-2023-204004606...

    There are many PDF editors on the market, including the top-rated Adobe Acrobat Standard and Acrobat Pro, which provide capabilities to convert PDFs, edit them, add e-signatures, and protect the ...

  6. Digital textbook - Wikipedia

    en.wikipedia.org/wiki/Digital_Textbook

    A digital textbook is a digital book or e-book intended to serve as the text for a class. Digital textbooks may also be known as e-textbooks or e-texts. Digital textbooks are a major component of technology-based education reform. They may serve as the texts for a traditional face-to-face class, an online course or degree, or massive open ...

  7. Category:Free PDF software - Wikipedia

    en.wikipedia.org/wiki/Category:Free_PDF_software

    Category. : Free PDF software. This is a category of articles relating to free software for making or viewing Portable Document Format (PDF) documents. That is, software which can be freely used, copied, studied, modified, and redistributed by everyone that obtains a copy. Typically, this means software which is distributed with a free software ...

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