1. Ctrl + N: Creates a blank document.
2. Ctrl + S: Saves document
3. Ctrl + B: Bold
4. Ctrl + I: Italic
5. Ctrl + U: Underline
6. Ctrl + Shift + K: Small Caps
7. Ctrl + Shift + L: All Caps
8. Ctrl + D: Font Formatting Dialog Box
9. Ctrl + Shift + P: Paragraph Formatting Dialog Box
10. Ctrl + Shift + R: Right Align
11. Ctrl + Shift + E: Center Align
12. Ctrl + Shift + J: Justify
13. Ctrl + Shift + D: Double Underline
14. Ctrl + Shift + G: Group/Ungroup
15. Ctrl + Shift + H: Hidden/Visible Paragraphs
16. Ctrl + Shift + T: Table of Contents
17. Ctrl + Shift + F: Find and Replace
18. Ctrl + Shift + N: Numbering/Bullets
19. Ctrl + Shift + S: Save As
20. Ctrl + Shift + O: Open File
21. Ctrl + K: Insert Hyperlink
22. Ctrl + F2: Edit Fields
23. Ctrl + Alt + C: Copyright Symbol
24. Ctrl + Alt + T: Trademark Symbol
25. Ctrl + Alt + R: Registered Trademark Symbol
26. Ctrl + Shift + M: Merge Cells
27. Ctrl + Shift + S: Split Cells
28. Ctrl + Shift + W: Wrap Text
29. Ctrl + Shift + V: Paste Special
30. Ctrl + Alt + V: Paste Unformatted Text
31. Ctrl + Alt + F: Footnote and Endnote Dialog Box
32. Ctrl + Alt + I: Table Formula Dialog Box
33. Ctrl + Alt + O: Options Dialog Box
34. Ctrl + Alt + G: Word Count Statistics
35. Ctrl + Alt + U: Update All Indexes and Tables
36. Ctrl + Alt+ E: Edit Mode for Selected Object(s)
37. Shift+F3 : Change Case of the selected text.
38. Shift+F3: Change Case of the selected text.
39. Ctrl + Shift + H: Hidden/Visible Paragraphs
40. Ctrl + Shift + T: Table of Contents
41. Ctrl + Alt + F: Footnote and Endnote Dialog Box
42. Ctrl + Alt + I: Table Formula Dialog Box
43. Ctrl + Alt + O: Options Dialog Box
44. Ctrl + Alt + G: Word Count Statistics
45. Ctrl + Alt+ U: Update All Indexes and Tables
46. Ctrl + Alt+ E: Edit Mode for Selected Object(s)
47. Shift+F3 : Change Case of the selected text.
48. Alt+F7 : Spellcheck
49. Alt+Shift+A : AutoCorrect options
50. Alt+Shift+C : Insert a comment
51. Alt+Shift+N : Create a new document from template.
52. Alt+Shift+S : Save a copy of the document as PDF
53. Alt+Shift+E : Send as email attachment
54. Alt+Shift+T : Insert a table
55. Alt+F7: Spellcheck
56. Alt+Shift+A: AutoCorrect options
57. Alt+Shift+C: Insert a comment
58. Alt+Shift+N: Create a new document
59. Alt+Shift+S: Save a copy of the document as PDF
60. Alt+Shift+E: Send as email attachment
61. Alt+Shift+T: Insert a table
62. Ctrl + Shift + F12: Open Document Information Dialog Box
63. Ctrl + Shift + U: Change Case of the selected text to uppercase.
64. Ctrl + Shift + L: Change Case of the selected text to lowercase.
65. Ctrl + Shift + W: Toggle Wrap Off/On for Selected Objects.
66. Ctrl + Shift + E: Edit Style Dialog Box.
67. Ctrl + Shift + Q: Apply Style.
68. Ctrl + Alt + B : Bookmark Dialog Box.
69. Ctrl + Alt + N : Footnote and Endnote Dialog Box.
70. Ctrl + Alt + T : Table Properties Dialog Box.
71. Ctrl + Alt+ X : Index Entry Dialog Box.
72. F11 : Styles and Formatting Task Pane.
73. Ctrl + Shift + F12: Open Document Information Dialog Box
74. Ctrl + Shift + U: Change Case of the selected text to uppercase.
75. Ctrl + Shift + L: Change Case of the selected text to lowercase.
76. Ctrl + Shift + W: Toggle Wrap Off/On for Selected Objects.
77. Ctrl + Shift + E: Edit Style Dialog Box.
78. Ctrl + Shift + Q: Apply Style.
79. Ctrl + Alt + B : Bookmark Dialog Box.
80. Ctrl + Alt + N : Footnote and Endnote Dialog Box.
81. Ctrl + Alt + T : Table Properties Dialog Box.
82. Ctrl + Alt+ X : Index Entry Dialog Box.
83. F11 : Styles and Formatting Task Pane.
84. Alt+Shift+D : Insert a date field
85. Alt+Shift+T : Insert a time field
86. Alt+Shift+F : Insert a footnote
87. Alt+Shift+E : Edit the hyperlink
88. Alt+Shift+B : Insert a bookmark
89. Alt+Shift+F10 : Display the context menu
90. Alt+F8 : Macros dialog box
91. Alt+F11 : Open Basic IDE (Integrated Development Environment)
92. F1 or Ctrl+F1 or Shift+F1 or Ctrl+Shift+F1 or Ctrl+Apostrophe(‘) or F6 or Ctrl+W or Esc or Backspace or Delete: Help
93. Alt+Shift+D: Insert a date field
94. Alt+Shift+T: Insert a time field
95. Alt+Shift+F: Insert a footnote
96. Alt+Shift+E: Edit the hyperlink
97. Alt+Shift+B: Insert a bookmark
98. Alt+Shift+F10: Display the context menu
99. Alt+F8: Macros dialog box
100. Alt+F11: Open Basic IDE (Integrated Development Environment)
101. F1 or Ctrl+F1 or Shift+F1 or Ctrl+Shift+F1 or Ctrl+Apostrophe(‘) or F6 or Ctrl+W or Esc or Backspace or Delete: Help
102. Ctrl + Shift + A: Select All Text in Document
103. Ctrl + Shift + Z: Redo Last Action
104. Ctrl + Alt + S : Save and Send as Email Attachment
105. Ctrl + Alt + N : Create New Style from Selection
106. Ctrl + Alt + C : Copy Style
107. Ctrl + Alt + V : Paste Style
108. – These shortcuts are for LibreOffice Writer version 7.0.
109. – Some shortcuts may not work on other versions of LibreOffice Writer.

You can get a copy of Libre Writer by downloading LibreOffice .