diff --git a/doc/encodings.md b/doc/encodings.md
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+# GMT Supported Encodings
+
+## Adobe Symbol Encoding
+
+| octal | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
+|---|---|---|---|---|---|---|---|---|
+| **\04x** |   | ! | ∀ | # | ∃ | % | & | ∋ |
+| **\05x** | ( | ) | ∗ | + | , | − | . | / |
+| **\06x** | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
+| **\07x** | 8 | 9 | : | &#x003b; | < | = | > | ? |
+| **\10x** | ≅ | Α | Β | Χ | ∆ | Ε | Φ | Γ |
+| **\11x** | Η | Ι | ϑ | Κ | Λ | Μ | Ν | Ο |
+| **\12x** | Π | Θ | Ρ | Σ | Τ | Υ | ς | Ω |
+| **\13x** | Ξ | Ψ | Ζ | [ | ∴ | ] | ⊥ | _ |
+| **\14x** |  | α | β | χ | δ | ε | φ | γ |
+| **\15x** | η | ι | ϕ | κ | λ | μ | ν | ο |
+| **\16x** | π | θ | ρ | σ | τ | υ | ϖ | ω |
+| **\17x** | ξ | ψ | ζ | { | | | } | ∼ | � |
+| **\24x** | € | ϒ | ′ | ≤ | ∕ | ∞ | ƒ | ♣ |
+| **\25x** | ♦ | ♥ | ♠ | ↔ | ← | ↑ | → | ↓ |
+| **\26x** | ° | ± | ″ | ≥ | × | ∝ | ∂ | • |
+| **\27x** | ÷ | ≠ | ≡ | ≈ | … | ⏐ | ⎯ | ↵ |
+| **\30x** | ℵ | ℑ | ℜ | ℘ | ⊗ | ⊕ | ∅ | ∩ |
+| **\31x** | ∪ | ⊃ | ⊇ | ⊄ | ⊂ | ⊆ | ∈ | ∉ |
+| **\32x** | ∠ | ∇ | ® | © | ™ | ∏ | √ | ⋅ |
+| **\33x** | ¬ | ∧ | ∨ | ⇔ | ⇐ | ⇑ | ⇒ | ⇓ |
+| **\34x** | ◊ | 〈 | ® | © | ™ | ∑ | ⎛ | ⎜ |
+| **\35x** | ⎝ | ⎡ | ⎢ | ⎣ | ⎧ | ⎨ | ⎩ | ⎪ |
+| **\36x** | � | 〉 | ∫ | ⌠ | ⎮ | ⌡ | ⎞ | ⎟ |
+| **\37x** | ⎠ | ⎤ | ⎥ | ⎦ | ⎫ | ⎬ | ⎭ | � |
+
+## Adobe ZapfDingbats
+
+| octal | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
+|---|---|---|---|---|---|---|---|---|
+| **\04x** |   | ✁ | ✂ | ✃ | ✄ | ☎ | ✆ | ✇ |
+| **\05x** | ✈ | ✉ | ☛ | ☞ | ✌ | ✍ | ✎ | ✏ |
+| **\06x** | ✐ | ✑ | ✒ | ✓ | ✔ | ✕ | ✖ | ✗ |
+| **\07x** | ✘ | ✙ | ✚ | ✛ | ✜ | ✝ | ✞ | ✟ |
+| **\10x** | ✠ | ✡ | ✢ | ✣ | ✤ | ✥ | ✦ | ✧ |
+| **\11x** | ★ | ✩ | ✪ | ✫ | ✬ | ✭ | ✮ | ✯ |
+| **\12x** | ✰ | ✱ | ✲ | ✳ | ✴ | ✵ | ✶ | ✷ |
+| **\13x** | ✸ | ✹ | ✺ | ✻ | ✼ | ✽ | ✾ | ✿ |
+| **\14x** | ❀ | ❁ | ❂ | ❃ | ❄ | ❅ | ❆ | ❇ |
+| **\15x** | ❈ | ❉ | ❊ | ❋ | ● | ❍ | ■ | ❏ |
+| **\16x** | ❐ | ❑ | ❒ | ▲ | ▼ | ◆ | ❖ | ◗ |
+| **\17x** | ❘ | ❙ | ❚ | ❛ | ❜ | ❝ | ❞ | � |
+| **\20x** | ❨ | ❩ | ❪ | ❫ | ❬ | ❭ | ❮ | ❯ |
+| **\21x** | ❰ | ❱ | ❲ | ❳ | ❴ | ❵ | � | � |
+| **\24x** | � | ❡ | ❢ | ❣ | ❤ | ❥ | ❦ | ❧ |
+| **\25x** | ♣ | ♦ | ♥ | ♠ | ① | ② | ③ | ④ |
+| **\26x** | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ | ❶ | ❷ |
+| **\27x** | ❸ | ❹ | ❺ | ❻ | ❼ | ❽ | ❾ | ❿ |
+| **\30x** | ➀ | ➁ | ➂ | ➃ | ➄ | ➅ | ➆ | ➇ |
+| **\31x** | ➈ | ➉ | ➊ | ➋ | ➌ | ➍ | ➎ | ➏ |
+| **\32x** | ➐ | ➑ | ➒ | ➓ | ➔ | → | ↔ | ↕ |
+| **\33x** | ➘ | ➙ | ➚ | ➛ | ➜ | ➝ | ➞ | ➟ |
+| **\34x** | ➠ | ➡ | ➢ | ➣ | ➤ | ➥ | ➦ | ➧ |
+| **\35x** | ➨ | ➩ | ➪ | ➫ | ➬ | ➭ | ➮ | ➯ |
+| **\36x** | � | ➱ | ➲ | ➳ | ➴ | ➵ | ➶ | ➷ |
+| **\37x** | ➸ | ➹ | ➺ | ➻ | ➼ | ➽ | ➾ | � |
+
+
+## ISOLatin1+ Encodings
+
+| octal | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
+|---|---|---|---|---|---|---|---|---|
+| **\03x** | � | • | … | ™ | — | – | fi | ž |
+| **\04x** |   | ! | " | # | $ | % | & | ' |
+| **\05x** | ( | ) | * | + | , | - | . | / |
+| **\06x** | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
+| **\07x** | 8 | 9 | : | &#x003b; | < | = | > | ? |
+| **\10x** | @ | A | B | C | D | E | F | G |
+| **\11x** | H | I | J | K | L | M | N | O |
+| **\12x** | P | Q | R | S | T | U | V | W |
+| **\13x** | X | Y | Z | [ | \ | ] | ^ | _ |
+| **\14x** | ` | a | b | c | d | e | f | g |
+| **\15x** | h | i | j | k | l | m | n | o |
+| **\16x** | p | q | r | s | t | u | v | w |
+| **\17x** | x | y | z | { | | | } | ~ | š |
+| **\20x** | Œ | † | ‡ | Ł | ⁄ | ‹ | Š | › |
+| **\21x** | œ | Ÿ | Ž | ł | ‰ | „ | “ | ” |
+| **\22x** | ı | ` | ´ | ^ | ˜ | ¯ | ˘ | ˙ |
+| **\23x** | ¨ | ‚ | ˚ | ¸ | ' | ˝ | ˛ | ˇ |
+| **\24x** | � | ¡ | ¢ | £ | ¤ | ¥ | ¦ | § |
+| **\25x** | ¨ | © | ª | « | ¬ | ­ | ® | ¯ |
+| **\26x** | ° | ± | ² | ³ | ´ | µ | ¶ | · |
+| **\27x** | ¸ | ¹ | º | » | ¼ | ½ | ¾ | ¿ |
+| **\30x** | À | Á | Â | Ã | Ä | Å | Æ | Ç |
+| **\31x** | È | É | Ê | Ë | Ì | Í | Î | Ï |
+| **\32x** | Ð | Ñ | Ò | Ó | Ô | Õ | Ö | × |
+| **\33x** | Ø | Ù | Ú | Û | Ü | Ý | Þ | ß |
+| **\34x** | à | á | â | ã | ä | å | æ | ç |
+| **\35x** | è | é | ê | ë | ì | í | î | ï |
+| **\36x** | ð | ñ | ò | ó | ô | õ | ö | ÷ |
+| **\37x** | ø | ù | ú | û | ü | ý | þ | ÿ |
\ No newline at end of file
diff --git a/doc/index.md b/doc/index.md
index cff9e9eea72..f373a7ccd28 100644
--- a/doc/index.md
+++ b/doc/index.md
@@ -42,6 +42,7 @@ external_resources.md
 :caption: Reference documentation
 
 api/index.rst
+encodings.md
 changes.md
 minversions.md
 ```