PDF Max - Edit, Sign PDFs

PDF Max - Edit, Sign PDFs

Scan, OCR, Research & Study

1.2K ratings
189 reviews
Free
In-App Purchases

Details

  • Released
  • Updated
  • August 7, 2012
  • August 21, 2026

Features

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iphone
ipad
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About

This app allows you to read, annotate, and sign PDF documents on your mobile device. You can mark up text, add handwritten notes, insert stamps, fill out forms, and manage PDF pages. It also offers robust file management and cloud integration for seamless access to your documents.

Read and annotate PDFs
Fill and sign PDF forms
Handwriting and text markup
Manage PDF pages
Cloud storage integration
Voice annotations
Show original description

What users say

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+1

What's New in PDF Max

27.1.0

August 21, 2026

PDF Max 27.1 takes you beyond editing. Your PDF can now become a Workspace where notes, evidence, and ideas stay connected to the pages they came from. YOUR PDF. NOW A WORKSPACE. • Collect important passages, highlights, images, tables, formulas, and notes as Cards beside your PDFs. • Return from any Card to its original page whenever you need the full context. • Search, tag, connect, and arrange Cards, then gather related Cards into named groups called Frames. • Work with several PDFs in one Workspace without merging the files. • Compare passages side by side or view your evidence as an Outline or table. • Present your Frames or export your work to Markdown, PDF, or Word, depending on your plan. STUDY WHAT MATTERS • Turn trusted Cards into Questions. • Practice a focused set without changing its schedule, or use scheduled Study for long-term review. • Track your Progress and upcoming reviews. • Study text, figures, tables, and formulas. • Return to the supporting Card and original PDF page whenever you need help. • On supported devices, Apple Intelligence can draft Questions for you to review. RECORD, SCAN, AND COMPLETE FORMS • Place Voice Notes on any PDF page and create searchable on-device transcripts when the speech model is available. • Scan paper with automatic capture, edge detection, cleanup, crop, filters, and page reordering. • Make scans searchable with optional OCR, or turn selected images into a PDF. • Detect likely text, checkbox, and signature fields in a flat or printed form, then review the result before applying it. • Use Form Assist to review suggested answers from your encrypted profile. FINISH AND DELIVER • Compress PDFs, resize mixed pages, and add page numbers or Bates numbering. • Add or remove an open password and edit PDF outlines. • Present PDF pages full screen, with second-screen presenter tools on supported iPhone and iPad setups. • Print or share selected passages and their context as a compact Focus View PDF. ALSO IMPROVED • Images now remain beside their text in Reflow Reader. • Alignment guides make objects easier to position. • Add comments from the ribbon or context menu. • Large edited documents open faster and more reliably. Some features require PDF Max PREMIUM. Apple Intelligence, transcription, and language features depend on supported hardware or downloaded models.

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Subscription plans

Premium Subscription (1 week)

Premium Subscription

$7.997 Days
How to cancel PDF Max subscription ⁉️
7

In-App Purchases

$4.99

Pro Package

This package provides all the features of PDF Max Pro version on the AppStore

User reviews

Defeito

Não consigo abrir meus textos depois da última atualização. Muito triste isso. Todos os meus estudos e anotações nos livros e artigos foram perdidos.

Crashing

I have always enjoyed this app. However, I just downloaded the latest version on my new iPhone 13, which has the latest iOS on it. And PDF Max keeps crashing every time I try to annotate a page. I never had that problem with the older version on any device! What can be done to fix this problem?

Stopped working having not long renewed subscription

App now crashes every time I go to create a PDF or try saving a current one. Have tried the fixes google recommends but none work and no support available on website.

bom mas o kybook 3 é melhor

alem de caro o app tem alguns problemas, então acabei optando pelo kybook 3

Great app when works

I purchased the pro app but for some reason does not transfer all documents from the basic version.

Developer apps

User experience

🐞

Reported Bugs

4 issues

Disappearing documents and annotations

Bug

Incompatibility with newer devices

Bug

Crashes on launch

Bug

Unreliable file saving

Bug

Requested Features

5 requests

Dark mode option

Feature

Ability to edit/delete annotations

Feature

Better integration with cloud storage

Feature

Split-screen viewing for PDFs

Feature

Improved handwriting recognition

Feature

FAQ

What can I do with PDF Max?

PDF Max allows you to read, annotate, and sign PDF documents on your iPhone and iPad. You can mark up text with highlights and handwriting, insert texts and stamps, fill out and sign PDFs, and even manipulate PDF pages. It also includes features for managing PDF outlines, links, and bookmarks, as well as robust file management capabilities.

Can I fill out forms with PDF Max?

Yes, PDF Max supports filling out various types of PDF forms, including text fields, checkboxes, radio buttons, dropdown lists, and date-time fields. It also supports JavaScripted-powered PDF forms, AcroForms, and Static XFA Forms. You can use the zoom-in writing feature to accurately fill out scanned or non-interactive PDF forms.

How does PDF Max handle file management?

PDF Max features a comprehensive file manager with thumbnail and list views, allowing you to sort files by name, modified date, or size. You can categorize files with color tags or favorites. It offers seamless integration with Dropbox and Google Drive, enabling you to work with files both online and offline. You can also copy or move files between cloud storage services and manage a local library.

Is PDF Max compatible with my device?

PDF Max is designed for use on iPhone and iPad devices. The description does not specify minimum iOS version requirements, but it is optimized for mobile use on Apple's iOS platform.

What are the annotation features in PDF Max?

PDF Max offers a wide range of annotation tools. These include text markup options like highlight, underline, and strike out, as well as unlimited threaded comments. You can create voice annotations, use handwriting with an advanced zoom-in feature, and utilize eraser tools. Shape tools for drawing lines, arrows, rectangles, and ovals with intelligent snapping are also available, along with a freetext tool and stamp tool for inserting predefined or custom stamps.