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Read, annotate & compare

Read it, mark it up, keep every version

Highlight, draw with a pen or Apple Pencil, add notes, and read in Day, Sepia or Night. Flourish PDF keeps your original and your last 15 saves, outside the PDF.

Flourish PDF on iPhone in Sepia reading theme with the drawing tools tray: pen, marker, highlighter, eraser, pencil, ruler and colour picker

Real capture from the App Store listing.

What you can do

Read, annotate & compare, tool by tool

The plan that unlocks each tool is on its label; the chips show which platforms have it today.

Read, zoom and searchFree

On Mac and iPad a results list shows every match with the sentence around it.

  • Mac
  • iPhone & iPad
  • Windows
  • Android

Day, Sepia and Night reading themesFree

  • Mac
  • iPhone & iPad
  • Windows
  • Android

Highlight textFree

  • Mac
  • iPhone & iPad
  • Windows
  • Android

Draw and handwrite with a pen, finger or Apple PencilFree

  • Mac
  • iPhone & iPad
  • Windows
  • Android

Sticky notesFree

  • Mac
  • iPhone & iPad
  • Windows
  • Android

Underline, strikeout, shapes and calloutsFree

  • Mac
  • iPhone & iPad
  • Windows
  • Android

Read aloudFree

On a scan it uses your OCR allowance first.

  • Mac
  • iPhone & iPad
  • Windows
  • Android

Version history: your original plus the last 15 savesFree

Kept on the device, outside the PDF.

  • Mac
  • iPhone & iPad
  • Windows
  • Android

PrintFree

  • Mac
  • iPhone & iPad
  • Windows
  • Android

Compare two PDFsPro

Every changed word or difference is marked on the page, and you can step through changes.

  • Mac
  • iPhone & iPad
  • Windows
  • Android

Accessibility audit and reportPro

Checks tags, alt text and language, exports a report and edits alt text. Full PDF/UA tagging is on the way.

  • Mac
  • iPhone & iPad
  • Windows
  • Android

Measure distance, area and perimeterPro

  • Mac
  • iPhone & iPad
  • Windows
  • Android

Why Flourish

Private by architecture, not by promise

Most PDF apps quietly send your file to a server to run OCR, conversion, or AI. Flourish PDF has no document upload endpoint at all — which makes it a genuine fit for legal, medical, financial and other sensitive documents.

No upload endpoint

The service has no route that accepts a document. Your file cannot be sent to us because there is nowhere to send it.

OCR and scanning on the device

Apple Vision, Google ML Kit and Windows' own recognizer read the page on your hardware.

AI on the device

Summaries and questions run on Apple Intelligence, Google's on-device models or a Microsoft Phi model on your PC — no credits, no cloud fallback.

Only an account and a plan on our side

Your email, a user id, and which plan is active. Never a PDF, its text, or what you asked about it.

Try read, annotate & compare free

Download Flourish PDF. Every tool is visible from the first launch; a paid plan unlocks the premium ones.