Freely set custom page sizes and margins in Google Docs™. Perfect for Amazon KDP Paperback and Hardcover trim sizes. Made for authors who love writing in Google Docs™ like me. — Made with ♥️
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Listing updated:May 22, 2025
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Overview
Page Sizer by Adam Natad is a simple yet powerful Google Docs™ add-on that allows you to freely set custom page sizes and margins for your documents with ease. Whether you're preparing manuscripts for Amazon KDP Paperback or Hardcover formats, or simply want precise control over your document layout, this tool is built to support your writing needs.

⚙️ Features:
- Set exact page width and height (in inches or centimeters)
- Adjust top, bottom, left, and right margins
- Choose from preset trim sizes or define your own
- Designed with authors and self-publishers in mind

I created this for myself to streamline my publishing process, and I’m sharing it to help other writers and indie authors who love working in Google Docs™ as much as I do. No complicated setup, just install, customize, and write your story your way.

🛠️ You can also browse the source code here:
https://github.com/AdamNatad/PageSizer/

- Google Docs™ is a trademark of Google LLC

- NatadTech™ is a trademark of NatadTech Solutions OPC

Made with ♥️
Additional information
PricingFree of charge
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Non-trader
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Page Sizer by Adam Natad will ask for the permissions shown below. Learn more
Page Sizer by Adam Natad will need access to your Google account
This will allow Page Sizer by Adam Natad 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
See your primary Google Account email address
See your personal info, including any personal info you've made publicly available
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Lee M.
October 17, 2025
Absolutely love this! I tried the other Page Sizer for Google Docs add-on but I am NOT paying a subscription for something as simple as page sizing (which should be in Docs already but oh well). This is way better because it has the same functionality but for free! I use this for B&N Press printing so I can see what it'll look like inside Docs and it's super helpful!
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Joshua Hope
October 9, 2025
Doesn't work. Set the page size, then hit apply, nothing happens. Waited over 5 minutes.
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Ryan Ciofolo
May 31, 2025
I'm too lazy to find better programs to make books, and I also didn't like the presets google docs already had, so this was really helpful! Already used for one of my books. :D
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Alex O
August 22, 2025
Easy and functional! Perfect, thank you!
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CirceRoyale
May 18, 2025
Thank you for not forcing a subscription! It makes it so much easier for people who are just beginning their journey.
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Bubacar Sumbunu
November 3, 2025
Messes up the formatting every time with no way to fix is
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Draglorr
April 2, 2025
This works amazing and is exactly what i wanted! FINALLY i can make my doc 6x9!!!
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Eric Palmer
July 22, 2025
Requires payment to use-- is exactly the same as another software on the martketplace
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Danielle Lattig
April 1, 2025
Adam, you are a real one for making this and not charging for it. Works fantastic.
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Paul M
June 26, 2025
didn't load. uninstalled.
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