Test 10: OTF Font Support

ทดสอบการแสดงผลฟอนต์ OTF (IBM Plex Sans) — kerning, ligature, bold, italic

Test 10.1 — IBM Plex Sans Regular (OTF)

The quick brown fox jumps over the lazy dog.
ABCDEFGHIJKLMNOPQRSTUVWXYZ
abcdefghijklmnopqrstuvwxyz 0123456789

Test 10.2 — IBM Plex Sans Bold

Bold: The quick brown fox jumps over the lazy dog.
Technology is best when it brings people together.

Test 10.3 — IBM Plex Sans Italic

Italic: The quick brown fox jumps over the lazy dog.
"Design is not just what it looks like and feels like. Design is how it works." — Steve Jobs

Test 10.4 — Kerning Pairs in OTF

Kerning pairs at 48px — IBM Plex Sans OTF:
AV AW AY AT VA
To Te Ty We Yo
PA P. F. r. f.

Test 10.5 — Ligatures in OTF

Ligature pairs at 36px — IBM Plex Sans OTF:
fi fl ff ffi ffl
office, difficult, affluent, efficient, traffic, sufficient
fifty, final, flame, float, buffer, coffee, offline

Test 10.6 — Multiple Font Sizes

10px: The quick brown fox jumps over the lazy dog.
14px: The quick brown fox jumps over the lazy dog.
18px: The quick brown fox jumps over the lazy dog.
24px: The quick brown fox jumps.
32px: Quick brown fox.
48px: PLEX

Test 10.7 — OTF vs TTF Comparison

IBM Plex Sans (OTF)
office fi fl ff ffi AV To
Inter (TTF)
office fi fl ff ffi AV To

Test 10.8 — Long Paragraph in OTF

IBM Plex is the corporate typeface for IBM worldwide. It was designed to reflect the brand spirit, beliefs and design principles of IBM and is an open-source project released under the SIL Open Font License. The typeface comes in Sans, Serif, Mono, and Sans Condensed variants, each available in eight weights with corresponding italics. This OTF (OpenType Font) format file contains advanced typographic features including ligatures (fi, fl, ff, ffi, ffl), contextual alternates, and precise kerning tables that ensure professional-quality text rendering in PDF documents. Testing efficient office workflow with sufficient buffer and offline coffee.