PDF Expert

PDF Expert by Readdle is the go-to PDF editor for macOS that edits text, images, and links, annotates and marks up documents, converts PDFs to Word/Excel/PPT, fills forms, signs, redacts, and OCRs scanned files — now sold as a one-time lifetime license on Dealify.

What is PDF Expert?

PDF Expert, from the Apple-ecosystem specialist Readdle, is widely considered the best pure PDF editor on macOS — an 'App of the Year Runner-Up' by Apple with 30 million users, ~4.6 stars from 20,000+ App Store reviews, and glowing press coverage from PCWorld, TechRadar, ZDNet, Macworld, and AppleInsider. It goes far beyond Preview: you can edit text, images, and links directly in the document, annotate and mark up with highlights, comments, stamps, and audio notes, organize pages (combine, split, rotate, reorder), convert PDFs to Word, Excel, PPT, JPG, PNG, and TXT (and back to PDF), fill and sign forms, redact content, run OCR on scanned files, clean up scans with the AI-powered Enhance tool, and use measurement tools. The Dealify lifetime offer sells one tier at $139 (regularly $242, ~43% off) covering the macOS version with all current features plus priority support and a 30-day money-back guarantee. The caveats are significant and clearly disclosed: it is macOS-only, excludes the iPhone/iPad version (a separate cross-platform subscription), excludes the AI-powered PDF chat (Beta), and states that while you get current functionality, bug fixes, and security updates, some new features Readdle develops may be sold as paid add-ons. TrustRadius carries a Readdle PDF Expert listing but has too few professional reviews to publish a score, so the strongest rating evidence is the Apple App Store and Dealify's own 24 reviews (~4.4/5).

Key Features

• *Edit PDF Text & Images** — Modify paragraphs, fix numbers, swap logos and add links directly inside any PDF, and redact sensitive content.
• *Annotate & Markup** — Highlight, comment, stamp, sticker, draw, and record audio notes with a deep annotation toolkit for review workflows.
• *Convert PDF** — Export PDFs to Word, Excel, PPT, JPG, PNG, or TXT, and convert JPG/PNG/Word/PPT/Excel back into PDFs.
• *OCR & Enhance Scans** — Recognize text in scanned documents so it's searchable and copyable, and use AI 'Enhance' to fix distortion, shadows, and contrast.
• *Fill Forms & Sign** — Fill out complex forms (including ones with calculations) and add personal or one-time signatures with a few clicks.
• *Page Management** — Combine, split, rotate, reorder, extract, and delete pages to organize entire documents.
• *Redact** — Permanently black out or remove confidential information before sharing documents.
• *Measurement Tools** — Take measurements in PDFs, useful for reviewing plans and drawings in construction and architecture.
• *Reading Modes** — Night/Sepia themes, adjustable brightness and font size, and fluid scrolling for comfortable long-session reading.

Who is it for?

• Mac users who live in PDFs — students annotating lecture notes, educators preparing materials, managers organizing documents
• Anyone tired of Adobe's subscription who still needs real editing (text, images, links), not just annotation
• Professionals who sign, redact, and fill forms regularly and want a fast, native, offline-first tool
• Construction, architecture, and engineering teams on Mac that need measurement tools for reviewing plans
• People who OCR and clean up old scans and want searchable text without a heavyweight document-management suite

Who is it NOT for?

• Users who need PDF Expert on iPhone and iPad too — that's a separate cross-platform subscription not included in this lifetime deal
• Anyone who wants the AI PDF chat (PDF Copilot) — it's excluded from the lifetime plan and currently in Beta
• Windows or Linux users — this is a macOS-only app (macOS 12.0 or later), so cross-platform teams should look at Foxit or PDFelement
• Deal hunters who buy LTDs for the discount: 43% off is modest by lifetime-deal standards, so buy it for the product, not the savings
• Teams that need the absolute latest features the day they ship, since the lifetime plan states some new features may be paid add-ons