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Change case in Google Docs™ (UPPERCASE, Title Case, Sentence case), advanced find and replace with many pairs, a text cleanup tool for pasted text, and any page size or KDP 6x9 trim.
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Listing updated:November 13, 2026
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Overview
Trimquill is a text toolkit for Google Docs™: change case (UPPERCASE, lowercase, Title Case, Sentence case), find and replace many words at once, remove line breaks and extra spaces from pasted text, and set a custom page size, including Amazon KDP book trim sizes like 6 × 9, all from one sidebar. The everyday tools are free.

CHANGE CASE (FREE)
Change text to UPPERCASE, lowercase, Title Case, Sentence case or tOGGLE cASE, from the Extensions menu or the sidebar. Title Case follows the style guide you pick: AP, APA, Chicago or MLA (which small words stay lowercase), or Capitalize Every Word. Acronyms like NASA and brand names like iPhone are kept. Text typed with caps lock on is fixed properly. Bold, italic, links and colors stay exactly where they were.

ADVANCED FIND AND REPLACE: MANY PAIRS AT ONCE
Make a table of find → replace pairs and run them all in one pass on the selection or the whole document. Preview first to see how many matches each pair has, with examples in context. Options: match case, whole words only, and keep the case of each match (Colour → Color, COLOUR → COLOR). Because the pairs run together, swapping two words just works. Paste a whole list at once (one pair per line). Each match keeps its own formatting and links.
Free: up to 3 pairs at a time and 1 saved list. Pro: unlimited pairs and saved lists, plus regular expressions with $1 groups. Patterns that could freeze a document are caught and refused before anything changes.

TEXT CLEANUP: REMOVE LINE BREAKS AND CLEAN UP PASTED TEXT
Fix text copied from PDFs, websites and email:
• Remove line breaks a PDF added in the middle of sentences, and rejoin words split with a hyphen at the line end
• Line breaks inside paragraphs → spaces
• Remove extra spaces, double spaces, tabs and non-breaking spaces
• Smart quotes → straight quotes, or straight → smart (“curly”)
• Remove empty paragraphs
• Pro: remove zero-width and other invisible characters (emoji and Persian and Indic joiners are kept), normalize dashes (-- → —), and remove typed bullets and numbers
• Pro: one-click presets (Clean PDF paste, Web or email paste, Plain text, Print / KDP manuscript) and your own saved presets
Preview shows how many fixes each cleanup will make before you run it.

PAGE SIZE: CUSTOM PAGE SIZE, MARGINS AND KDP TRIM SIZES (FREE)
Set any page size in inches, mm or cm, with presets for US Letter, Legal, Tabloid, A4, A5, A6, index cards and greeting cards, and the Amazon KDP paperback trim sizes 5 × 8, 5.25 × 8, 5.5 × 8.5, 6 × 9, 7 × 10 and 8.5 × 11 in. Writing a book in Google Docs™? Enter your page count and Trimquill fills in margins that meet KDP's gutter rules, with or without bleed, and explains each number. Download as PDF and the file is exactly that size.

PRIVATE BY DESIGN
Trimquill only opens the document you're using it in. There's no Trimquill server, no tracking and no ads. The only outside call is checking a Pro license key with Gumroad.

PLANS
Free: every case change, find and replace with 3 pairs and 1 saved list, the basic cleanups, and page size with KDP presets.
Trimquill Pro: unlimited pairs and saved lists, regular expressions, cleanup presets, and the advanced cleanups. Pro is bought from inside the add-on, where the current prices are shown.

From Front Porch Puzzle Press.

Google Docs™ and Google Workspace™ are trademarks of Google LLC. Amazon KDP is a trademark of Amazon.com, Inc. or its affiliates. Trimquill is not affiliated with or endorsed by Google or Amazon.
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PricingFree of charge with paid features
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Trimquill: Change Case, Page Size, Find & Replace will ask for the permissions shown below. Learn more
Trimquill: Change Case, Page Size, Find & Replace will need access to your Google account
This will allow Trimquill: Change Case, Page Size, Find & Replace to :
View and manage documents that this application has been installed in
Display and run third-party web content in prompts and sidebars inside Google applications
Connect to an external service
See your primary Google Account email address
See your personal info, including any personal info you've made publicly available
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