About Boundarysline Tools
Practical browser tools and worked guides for independent businesses, small teams, and everyday file tasks.
Who makes this site
Boundarysline is an independent software studio. This tools collection sits alongside our other software products. It helps you prepare product images, work with documents and data, and check business calculations without creating an account.
What happens to your data
File, text, image, and calculation tools process their inputs in your browser. The three curriculum worksheet generators are different: they send selected grade, term, and practice options to our server to create a preview or PDF. Those selections and results are not saved. Page requests and limited usage statistics still reach the server; local processing does not mean the website makes no network requests. See our privacy policy for details.
How we make these guides
These guides explain tasks in the tools on this site. We use official documentation for format and platform rules and link the relevant sources. AI assists with drafting, translation, and some clearly labeled sample images. Worked examples use fictional data; published checks distinguish software results from physical printing or phone-camera tests. A source link is not an endorsement of this site.
Updates and limitations
We change the displayed update date when the article changes, not on every visit. Browser versions and destination apps can produce different results. Business documents are drafts, not tax or legal advice; a drawn signature is not a certificate signature. Keep originals and verify output in the receiving system.
Report a problem
Email the page address, your browser and device, the steps you took, and the expected versus actual result. Use a small fictional example instead of sending customer records, passwords, payment details, or private documents. We do not promise a response time.