# Sub-setting Source Pro typeface - Using [version 3.006](https://github.com/adobe-fonts/source-sans-pro/releases/tag/3.006R) for Source Sans, not the version from Google Fonts (_1.076_) because it doesn't support Greek italic. On the other hand, version 3.006 doesn't support hinting. - https://github.com/adobe-fonts/source-sans-pro/releases/tag/3.006R - https://github.com/google/fonts/issues/1744 - You can append `--verbose` to output extra details in the console. - Append `--no-hinting --desubroutinize` to remove hinting. - Substitute _woff2_ with _woff_ to create `woff` files. - To create the latin subsets from Google fonts, you need the following unicode range: `U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD`. For an example command, see section _1. Source Sans Prop Regular._ - TODO: Create a more reasonable latin subset (with punctuation like _em dashes_) instead of downloading latin _and_ rest? ## 1. Source Sans Pro Regular According to https://wakamaifondue.com/, this font supports 52 layout features. ### Required (4): ccmp, mark, mkmk, locl. ### The rest (48): aalt, c2sc, case, cv01, cv02, cv03, cv04, cv05, cv06, cv07, cv08, cv09, cv10, cv11, cv12, cv13, cv14, cv15, cv16, cv17, cv18, cv19, dnom, frac, liga, numr, onum, ordn, pnum, salt, sinf, smcp, ss01, ss02, ss03, ss04, ss05, ss06, ss07, ss08, ss09, ss10, subs, sups, titl, zero, kern, size. - SourceSansPro-Regular-all.woff2 (79.7KB): `pyftsubset SourceSansPro-Regular.ttf --output-file="SourceSansPro-Regular-all.woff2" --flavor=woff2 --layout-features=* --unicodes=*` - SourceSansPro-Regular-latin.woff2 (21.4KB): `pyftsubset SourceSansPro-Regular.ttf --output-file="SourceSansPro-Regular-latin.woff2" --flavor=woff2 --layout-features=* --unicodes=U+0000-00FF` - SourceSansPro-Regular-latin-google-fonts.woff2 (23.4KB) `pyftsubset SourceSansPro-Regular.ttf --output-file="SourceSansPro-Regular-latin-google-fonts.woff2" --flavor=woff2 --unicodes=U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD --layout-features=* --verbose` - SourceSansPro-Regular-latin-specific-layout-features.woff2 (20.3KB, small difference): `pyftsubset SourceSansPro-Regular.ttf --output-file="SourceSansPro-Regular-latin-specific-layout-features.woff2" --flavor=woff2 --layout-features=ccmp,locl,mark,mkmk,salt,frac,onum,ordn,pnum,zero,smcp,liga,c2sc,subs,sups,kern --unicodes=U+0000-00FF` - SourceSansPro-Regular-greek.woff2 (9KB): `pyftsubset SourceSansPro-Regular.ttf --output-file="SourceSansPro-Regular-greek.woff2" --flavor=woff2 --layout-features=* --unicodes=U+0370-03FF` - SourceSansPro-Regular-greek-extended.woff2 (5.8KB): `pyftsubset SourceSansPro-Regular.ttf --output-file="SourceSansPro-Regular-greek-extended.woff2" --flavor=woff2 --layout-features=* --unicodes=U+1F00-1FFF` - SourceSansPro-Regular-combining-diacritical-marks.woff2 (4.8KB): `pyftsubset SourceSansPro-Regular.ttf --output-file="SourceSansPro-Regular-combining-diacritical-marks.woff2" --flavor=woff2 --layout-features=* --unicodes=U+0300-036F` - SourceSansPro-Regular-phonetic.woff2 (8.8KB): `pyftsubset SourceSansPro-Regular.ttf --output-file="SourceSansPro-Regular-phonetic.woff2" --flavor=woff2 --layout-features=* --unicodes=U+0250-02FF` - SourceSansPro-Regular-rest.woff2 (12.2KB): `pyftsubset SourceSansPro-Regular.ttf --output-file="SourceSansPro-Regular-rest.woff2" --flavor=woff2 --layout-features=* --unicodes=U+2000-1F916` What we'll actually use from the above, ordered by expected frequency: - Latin: SourceSansPro-Regular-latin.woff2 (21.4KB). - Rest: SourceSansPro-Regular-rest.woff2 (12.2KB). - Greek: SourceSansPro-Regular-greek.woff2 (9KB). - Combining diacritical marks: SourceSansPro-Regular-combining-diacritical-marks.woff2 (4.8KB). - Greek extended: SourceSansPro-Regular-greek-extended.woff2 (6.6KB). - Phonetic: SourceSansPro-Regular-phonetic.woff2 (8.8KB). In most of the pages the size for Regular would be _latin_ + _rest_ = 33.6KB or just _latin_ = 21.4KB. Warning: If we are typesetting a piece of fancy Greek text, the font size can easily go near the max with this method. All the subsets combined have a size of 62.8KB—which is still smaller than the 79.7KB of the original. ## 2. Source Sans Pro Italic According to https://wakamaifondue.com/, this font supports the following layout features: ## Required (4) ccmp, locl, mark, mkmk. ## The rest (46) : Compared to Regular, the italic version doesn't support _c2sc_. aalt, case, cv01, cv02, cv03, cv04, cv05, cv06, cv07, cv08, cv09, cv10, cv11, cv12, cv13, cv14, cv15, cv16, cv17, cv18, cv19, dnom, frac, liga, numr, onum, ordn, pnum, salt, sinf, ss01, ss02, ss03, ss04, ss05, ss06, ss07, ss08, ss09, ss10, subs, sups, titl, zero, kern, size. You do the same as with Regular but you change the names from _Regular_ to _Italic_. - SourceSansPro-It-all.woff2 (64.3KB): `pyftsubset.exe SourceSansPro-It.ttf --output-file="SourceSansPro-It-all.woff2" --flavor=woff2 --layout-features=* --unicodes=*` - SourceSansPro-It-latin.woff2 (17.4KB): `pyftsubset SourceSansPro-It.ttf --output-file="SourceSansPro-It-latin.woff2" --flavor=woff2 --layout-features=* --unicodes=U+0000-00FF` - SourceSansPro-It-greek.woff2 (7.4KB): `pyftsubset SourceSansPro-It.ttf --output-file="SourceSansPro-It-greek.woff2" --flavor=woff2 --layout-features=* --unicodes=U+0370-03FF` - SourceSansPro-It-greek-extended.woff2 (5.8KB): `pyftsubset SourceSansPro-It.ttf --output-file="SourceSansPro-It-greek-extended.woff2" --flavor=woff2 --layout-features=* --unicodes=U+1F00-1FFF` - SourceSansPro-It-combining-diacritical-marks.woff2 (4.8KB): `pyftsubset SourceSansPro-It.ttf --output-file="SourceSansPro-It-combining-diacritical-marks.woff2" --flavor=woff2 --layout-features=* --unicodes=U+0300-036F` - SourceSansPro-It-phonetic.woff2 (8.1KB): `pyftsubset SourceSansPro-It.ttf --output-file="SourceSansPro-It-phonetic.woff2" --flavor=woff2 --layout-features=* --unicodes=U+0250-02FF` - SourceSansPro-It-rest.woff2 (12KB): `pyftsubset SourceSansPro-It.ttf --output-file="SourceSansPro-It-rest.woff2" --flavor=woff2 --layout-features=* --unicodes=U+2000-1F916` ## 3. Source Sans Pro Bold According to https://wakamaifondue.com/, this font supports the following layout features: ## Required (4) ccmp, locl, mark, mkmk. ## The rest (48) : aalt, c2sc, case, cv01, cv02, cv03, cv04, cv05, cv06, cv07, cv08, cv09, cv10, cv11, cv12, cv13, cv14, cv15, cv16, cv17, cv18, cv19, dnom, frac, liga, numr, onum, ordn, pnum, salt, sinf, smcp, ss01, ss02, ss03, ss04, ss05, ss06, ss07, ss08, ss09, ss10, subs, sups, titl, zero, kern, size. You do the same as with Regular but you change the names from _Regular_ to _Bold_. - SourceSansPro-Bold-all.woff2 (79KB): `pyftsubset.exe SourceSansPro-Bold.ttf --output-file="SourceSansPro-Bold-all.woff2" --flavor=woff2 --layout-features=* --unicodes=*` - SourceSansPro-Bold-latin.woff2 (21.4KB): `pyftsubset SourceSansPro-Bold.ttf --output-file="SourceSansPro-Bold-latin.woff2" --flavor=woff2 --layout-features=* --unicodes=U+0000-00FF` - SourceSansPro-Bold-greek.woff2 (8.9KB): `pyftsubset SourceSansPro-Bold.ttf --output-file="SourceSansPro-Bold-greek.woff2" --flavor=woff2 --layout-features=* --unicodes=U+0370-03FF` - SourceSansPro-Bold-greek-extended.woff2 (6.6KB): `pyftsubset SourceSansPro-Bold.ttf --output-file="SourceSansPro-Bold-greek-extended.woff2" --flavor=woff2 --layout-features=* --unicodes=U+1F00-1FFF` - SourceSansPro-Bold-combining-diacritical-marks.woff2 (4.9KB): `pyftsubset SourceSansPro-Bold.ttf --output-file="SourceSansPro-Bold-combining-diacritical-marks.woff2" --flavor=woff2 --layout-features=* --unicodes=U+0300-036F` - SourceSansPro-Bold-phonetic.woff2 (8.8KB): `pyftsubset SourceSansPro-Bold.ttf --output-file="SourceSansPro-Bold-phonetic.woff2" --flavor=woff2 --layout-features=* --unicodes=U+0250-02FF` - SourceSansPro-Bold-rest.woff2 (12.2KB): `pyftsubset SourceSansPro-Bold.ttf --output-file="SourceSansPro-Bold-rest.woff2" --flavor=woff2 --layout-features=* --unicodes=U+2000-1F916` ## 4. Source Sans Pro Bolditalic According to https://wakamaifondue.com/, this font supports the following layout features: ## Required (4) ccmp, locl, mark, mkmk. ## The rest (46) : Compared to Regular, the BoldItalic version doesn't support _c2sc_. aalt, case, cv01, cv02, cv03, cv04, cv05, cv06, cv07, cv08, cv09, cv10, cv11, cv12, cv13, cv14, cv15, cv16, cv17, cv18, cv19, dnom, frac, liga, numr, onum, ordn, pnum, salt, sinf, ss01, ss02, ss03, ss04, ss05, ss06, ss07, ss08, ss09, ss10, subs, sups, titl, zero, kern, size. You do the same as with Regular but you change the names from _Regular_ to _Bolditalic_. - SourceSansPro-BoldIt-all.woff2 (63.7KB): `pyftsubset.exe SourceSansPro-BoldIt.ttf --output-file="SourceSansPro-BoldIt-all.woff2" --flavor=woff2 --layout-features=* --unicodes=*` - SourceSansPro-BoldIt-latin.woff2 (17.3KB): `pyftsubset SourceSansPro-BoldIt.ttf --output-file="SourceSansPro-BoldIt-latin.woff2" --flavor=woff2 --layout-features=* --unicodes=U+0000-00FF` - SourceSansPro-BoldIt-greek.woff2 (7.4KB): `pyftsubset SourceSansPro-BoldIt.ttf --output-file="SourceSansPro-BoldIt-greek.woff2" --flavor=woff2 --layout-features=* --unicodes=U+0370-03FF` - SourceSansPro-BoldIt-greek-extended.woff2 (5.7KB): `pyftsubset SourceSansPro-BoldIt.ttf --output-file="SourceSansPro-BoldIt-greek-extended.woff2" --flavor=woff2 --layout-features=* --unicodes=U+1F00-1FFF` - SourceSansPro-BoldIt-combining-diacritical-marks.woff2 (5KB): `pyftsubset SourceSansPro-BoldIt.ttf --output-file="SourceSansPro-BoldIt-combining-diacritical-marks.woff2" --flavor=woff2 --layout-features=* --unicodes=U+0300-036F` - SourceSansPro-BoldIt-phonetic.woff2 (8.1KB): `pyftsubset SourceSansPro-BoldIt.ttf --output-file="SourceSansPro-BoldIt-phonetic.woff2" --flavor=woff2 --layout-features=* --unicodes=U+0250-02FF` - SourceSansPro-BoldIt-rest.woff2 (12.1KB): `pyftsubset SourceSansPro-BoldIt.ttf --output-file="SourceSansPro-BoldIt-rest.woff2" --flavor=woff2 --layout-features=* --unicodes=U+2000-1F916` ## 5. Source Sans Variable Roman According to https://wakamaifondue.com/, this font supports 52 layout features. ### Required (4): ccmp, mark, mkmk, locl. ### The rest (48): aalt, c2sc, case, cv01, cv02, cv03, cv04, cv05, cv06, cv07, cv08, cv09, cv10, cv11, cv12, cv13, cv14, cv15, cv16, cv17, cv18, cv19, dnom, frac, liga, numr, onum, ordn, pnum, salt, sinf, smcp, ss01, ss02, ss03, ss04, ss05, ss06, ss07, ss08, ss09, ss10, subs, sups, titl, zero, kern, size. It has 1 axis and 6 named instances: - axis: `wght` (Weight) - instances: ExtraLight (200), Light (300), Regular (400), SemiBold (600), Bold (700), and Black (900). ### pyftsubset commands - SourceSansVariable-Roman-all.woff2 (133.6KB): `pyftsubset.exe SourceSansVariable-Roman.ttf --output-file="SourceSansVariable-Roman-all.woff2" --flavor=woff2 --layout-features=* --unicodes=*` - SourceSansVariable-Roman-latin.woff2 (40KB): `pyftsubset SourceSansVariable-Roman.ttf --output-file="SourceSansVariable-Roman-latin.woff2" --flavor=woff2 --layout-features=* --unicodes=U+0000-00FF` - SourceSansVariable-Roman-greek.woff2 (16.2KB): `pyftsubset SourceSansVariable-Roman.ttf --output-file="SourceSansVariable-Roman-greek.woff2" --flavor=woff2 --layout-features=* --unicodes=U+0370-03FF` - SourceSansVariable-Roman-greek-extended.woff2 (10.7KB): `pyftsubset SourceSansVariable-Roman.ttf --output-file="SourceSansVariable-Roman-greek-extended.woff2" --flavor=woff2 --layout-features=* --unicodes=U+1F00-1FFF` - SourceSansVariable-Roman-combining-diacritical-marks.woff2 (7.9KB): `pyftsubset SourceSansVariable-Roman.ttf --output-file="SourceSansVariable-Roman-combining-diacritical-marks.woff2" --flavor=woff2 --layout-features=* --unicodes=U+0300-036F` - SourceSansVariable-Roman-phonetic.woff2 (16.9KB): `pyftsubset SourceSansVariable-Roman.ttf --output-file="SourceSansVariable-Roman-phonetic.woff2" --flavor=woff2 --layout-features=* --unicodes=U+0250-02FF` - SourceSansVariable-Roman-rest.woff2 (22KB): `pyftsubset SourceSansVariable-Roman.ttf --output-file="SourceSansVariable-Roman-rest.woff2" --flavor=woff2 --layout-features=* --unicodes=U+2000-1F916` ## 6. Source Sans Variable Italic According to https://wakamaifondue.com/ it has 1431 characters. It also has 1 axis and 6 named instances. Finally, it has 50 layout features. ### Required (4): ccmp, mark, mkmk, locl. ### The rest (46): aalt, case, cv01, cv02, cv03, cv04, cv05, cv06, cv07, cv08, cv09, cv10, cv11, cv12, cv13, cv14, cv15, cv16, cv17, cv18, cv19, dnom, frac, liga, numr, onum, ordn, pnum, salt, sinf, ss01, ss02, ss03, ss04, ss05, ss06, ss07, ss08, ss09, ss10, subs, sups, titl, zero, kern, size. It has 1 axis and 6 named instances: - axis: `wght` (Weight) - instances: ExtraLight Italic (200), Light Italic (300), Regular Italic (400), SemiBold Italic (600), Bold Italic (700), and Black Italic (900). ### pyftsubset commands - SourceSansVariable-Italic-all.woff2 (109.2KB): `pyftsubset.exe SourceSansVariable-Italic.ttf --output-file="SourceSansVariable-Italic-all.woff2" --flavor=woff2 --layout-features=* --unicodes=*` - SourceSansVariable-Italic-latin.woff2 (32.2KB): `pyftsubset SourceSansVariable-Italic.ttf --output-file="SourceSansVariable-Italic-latin.woff2" --flavor=woff2 --layout-features=* --unicodes=U+0000-00FF` - SourceSansVariable-Italic-greek.woff2 (13.2KB): `pyftsubset SourceSansVariable-Italic.ttf --output-file="SourceSansVariable-Italic-greek.woff2" --flavor=woff2 --layout-features=* --unicodes=U+0370-03FF` - SourceSansVariable-Italic-greek-extended.woff2 (9.5KB): `pyftsubset SourceSansVariable-Italic.ttf --output-file="SourceSansVariable-Italic-greek-extended.woff2" --flavor=woff2 --layout-features=* --unicodes=U+1F00-1FFF` - SourceSansVariable-Italic-combining-diacritical-marks.woff2 (8.1KB): `pyftsubset SourceSansVariable-Italic.ttf --output-file="SourceSansVariable-Italic-combining-diacritical-marks.woff2" --flavor=woff2 --layout-features=* --unicodes=U+0300-036F` - SourceSansVariable-Italic-phonetic.woff2 (16.2KB): `pyftsubset SourceSansVariable-Italic.ttf --output-file="SourceSansVariable-Italic-phonetic.woff2" --flavor=woff2 --layout-features=* --unicodes=U+0250-02FF` - SourceSansVariable-Italic-rest.woff2 (22.6KB): `pyftsubset SourceSansVariable-Italic.ttf --output-file="SourceSansVariable-Italic-rest.woff2" --flavor=woff2 --layout-features=* --unicodes=U+2000-1F916`