Presento
Claude builds your decks and documents page by page, then prints a perfect PDF.
About
Presento is a native Mac app for presentations and documents built by Claude. Each document is HTML, one page at a time, and Presento prints it to a PDF through Google Chrome's print engine at the exact page size the document declares, so the file you send matches the page you approved.
Click a page or any element on it and say what you want, or press Mark to tap, circle or draw an arrow on the page. Claude receives a numbered, marked picture of what you pointed at, edits in a staging copy, and the change lands only after every page passes its checks for overflow, footer collisions, missing images, fonts and contrast.
Every turn becomes a revision with a thumbnail of each page it changed. Ask for several variants of a page and compare them side by side, restore one page from any earlier revision, lock pages you are happy with, and name a revision as a final such as Version 1 (Launch day).
The Library keeps every document, with fork as a new draft and import for any HTML deck. Templates set the page size, layouts and content rules, the Hall of Champions holds 144 landmark works to learn from, and the same app runs as the presento command-line tool.
Point at what you mean
Tap, circle or draw an arrow on a page. Each mark resolves to the elements under it, and Claude works on exactly that part of the page.
Variants side by side
Ask for three versions of a page and compare them as printed pages, with the page as it stands shown as A, then keep the one you like.
Every revision kept
History reads like a timeline of what you asked and which pages moved. Restore a single page from any revision and name finals that stay starred.
Checks before anything lands
Overflow, footer collisions, missing images, fonts that failed to load, contrast, and the voice and number rules your template carries are checked on every page.
A PDF named for its version
Export writes a file such as Halcyon Launch Keynote - Version 1 (Launch day).pdf, printed by Chrome at the page size the document declares.
Runs on your Claude plan
Presento drives Claude Code signed in to the Claude plan you already have, on macOS 15 or later with Apple silicon and Google Chrome installed.