Fonttools: How to get font timestamp using fonttools?

Created on 25 Dec 2019 · 4Comments · Source: fonttools/fonttools

Hello.
How to get the values of "created" and "modified" using Python and fonttools?

  <head>
    <!-- Most of this table will be recalculated by the compiler -->
    <tableVersion value="1.0"/>
    <fontRevision value="4.0"/>
    <checkSumAdjustment value="0x160025c"/>
    <magicNumber value="0x5f0f3cf5"/>
    <flags value="00000000 00001011"/>
    <unitsPerEm value="1000"/>
    <created value="Thu Jul 25 11:21:21 2013"/>
    <modified value="Thu Apr  5 15:06:34 2018"/>
    <xMin value="-166"/>
    <yMin value="-248"/>
    <xMax value="1085"/>
    <yMax value="973"/>
    <macStyle value="00000000 00000001"/>
    <lowestRecPPEM value="9"/>
    <fontDirectionHint value="2"/>
    <indexToLocFormat value="0"/>
    <glyphDataFormat value="0"/>
  </head>

Thanks in advance for your reply!

Source

RomulBY

All 4 comments

from fontTools.ttLib import TTFont
f = TTFont('path/to/my/font.otf')
print(f['head'].modified)

justvanrossum on 25 Dec 2019

👍1

Thank you, but this way gives the answer - "3605785594"
If we convert it to a "human-readable date", we get "Wed Apr 5 15:06:34 2084".
Date in ttx file - "Thu Apr 5 15:06:34 2018"
Maybe you know why the year is different? (2084 vs 2018)?

RomulBY on 25 Dec 2019

This is the time where you should go to the spec and read up on the details: https://docs.microsoft.com/en-us/typography/opentype/spec/head
And/or read the fontTools source code, to see how it's used: https://github.com/fonttools/fonttools/blob/fbf2b960ccf6a003605d77d01ffe09dc1ff502f3/Lib/fontTools/ttLib/tables/_h_e_a_d.py#L81 and https://github.com/fonttools/fonttools/blob/fbf2b960ccf6a003605d77d01ffe09dc1ff502f3/Lib/fontTools/misc/timeTools.py#L43

justvanrossum on 26 Dec 2019

👍1

Many thanks, Justvanrossum!
For your programs and for your help. You are a great man!
Happy New Year!

RomulBY on 26 Dec 2019

👍1

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