\ˌpē-(ˌ)dē-ˈef \
variants: or PDF

Definition of pdf 

: a computer file format for the transmission of a multimedia document that is not intended to be edited further and appears unaltered in most computer environments also : a document that uses this format

Examples of pdf in a Sentence

Recent Examples on the Web

All articles must be submitted to us in a commonly available word processing app like Word or as a pdf. Popular Mechanics, "Contact Us," 6 Apr. 2010 Kentucky’s Rocky Mountain herd now numbers about 11,000, the largest population (pdf) in any state east of the Mississippi. Leslie Nemo, Scientific American, "From Defiled to Wild—Can a Spent Coal Mine Be Reborn as a Nature Conservation Center?," 11 July 2018 These ideas have been around for decades (pdf), but the majority of neuroscientists have paid little attention. Simon Makin, Scientific American, "“Traveling” Brain Waves May Be Critical for Cognition," 28 June 2018 Over half the children placed into foster care (pdf) that year were children of color; black children made up 23 percent of those children. Amnoni L Myers, The Root, "Black Children and Foster Care: On Surviving the Trauma of a System That Doesn’t Care About Keeping Families Together," 28 May 2018 Still, Indian science has made some notable progress in recent years: In 2013 the country ranked (pdf) sixth in the world in terms of scientific publications. Shekhar Chandra, Scientific American, "India Joins the Worldwide March for Science," 16 Apr. 2018 In fact, SmarterSafer, a collation made up of insurance companies, progressive environmental organizations and right-leaning think tanks, is one group advocating for sweeping change (pdf). Jen Schwartz, Scientific American, "National Flood Insurance Is Underwater Because of Outdated Science," 23 Mar. 2018 One study, published in Environmental Research Letters last month (pdf), found the number of Americans exposed to serious flooding is about three times higher than previous estimates. Jen Schwartz, Scientific American, "National Flood Insurance Is Underwater Because of Outdated Science," 23 Mar. 2018 After the Reconstruction Era ended in 1877, Jim Crow laws intended to maintain white supremacy through violence, intimidation and segregation, spread across the Southern states—and some Northern states, too (pdf). Kirsten West Savali, The Root, "Watch: ‘I Know Hard Work’: Memphis Sanitation Strikers on Childhoods Sharecropping in the Jim Crow South," 8 Feb. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'pdf.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of pdf

1992, in the meaning defined above

History and Etymology for pdf

portable document format

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Time Traveler for pdf

The first known use of pdf was in 1992

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noxious or harmful

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