• paper size - Slight discrepancy in left/right margins - TeX - LaTeX Stack Exchange
    https://tex.stackexchange.com/questions/79568/slight-discrepancy-in-left-right-margins/79574

    The printer driver of Adobe Reader has a rather “nice” feature. If I look at the page properties of a PDF document produced with pdflatex, the program says

    20.998 x 29.697 cm
    while with pdfinfo I get

    595.276 x 841.89 pts (A4)
    However, according to bc,

    595.276*2.54/72 = 21.00001444444444444444
    841.89*2.54/72 = 29.70000833333333333333
    so it’s not clear why the dimensions are different from 21 x 29.7 cm. If I change the units to points (Postscript big points), Adobe Reader says 595.3 x 841.9, so I’m really confused about the computations it does, which imply a shorter inch than the official one (2.5397cm, instead of 2.54cm).

    Since the output format is set to A4, which at Adobe Reader’s eyes is different from the stated document size, the program offers by default to “Fit to printable area” with a zoom to 93%, which is quite a bizarre figure, since the document is smaller than the paper, at Reader’s eyes, not larger.

    So, always watch out for the printing options and remember to choose “None” from the “Page Scaling” pop up menu.

    #papier #impression #PDF #unités_de_mesure #bug