PDF Max Pro - Edit, Sign PDFs

PDF Max Pro is a complete PDF editor for iPhone, iPad, and Mac, trusted by millions of people since 2012.

From signing a form to building research you can verify, PDF Max Pro helps you edit, annotate, organize, understand, study, protect, and deliver PDFs—all in one app.

YOUR PDF. NOW A WORKSPACE.

Collect important passages, highlights, images, tables, formulas, and notes as Cards beside your PDFs. Every Card remembers where it came from, so you can return to the original page whenever you need the full context.

• Search, tag, connect, and arrange your Cards
• Gather related Cards into named groups called Frames
• Organize evidence from several PDFs without merging them
• Compare passages side by side or view your evidence as an Outline or table
• Present Frames or export your work to Markdown, PDF, or Word

STUDY WHAT MATTERS

Turn trusted Cards into Questions, practice a focused topic, or use scheduled Study for long-term review. Track your Progress, study text and visual material, and return to the supporting PDF whenever an answer needs more context.

On supported devices, Apple Intelligence can draft Questions for you to review before saving.

EDIT, ANNOTATE, FILL, AND SIGN
• Edit existing text, typography, images, links, shapes, and tables
• Add, replace, crop, align, rotate, and arrange content
• Remove image backgrounds and automatically crop subjects
• Highlight, underline, strike through, draw, stamp, and comment
• Add text boxes, callouts, notes, shapes, and threaded comments
• Complete forms, find missing required fields, and add reusable signatures
• Create and edit text, checkbox, radio, dropdown, signature, date, and image fields
• Permanently redact text, areas, pages, or search results

SCAN, READ, AND UNDERSTAND
• Scan paper with automatic capture, edge detection, cleanup, crop, filters, and page reordering
• Make scans searchable with optional OCR
• Turn selected images into polished PDFs
• Reflow fixed or scanned pages into a comfortable reading column
• Keep figures beside the text they explain
• Customize reading theme, typography, spacing, margins, and alignment
• Translate supported languages and listen with on-device Read Aloud
• Keep selected passages and useful context with Focus View

VOICE NOTES THAT STAY ON THE PAGE
• Place and play audio notes anywhere in a PDF
• Create searchable on-device transcripts when the required speech model is available

MAKE FLAT FORMS FILLABLE
• Detect likely text, checkbox, and signature fields in flat or printed forms
• Review every detected field before applying it
• Use Form Assist to review suggested answers from your encrypted profile

EVERY PDF TOOL IN ONE PLACE
• Reorder, rotate, insert, duplicate, replace, extract, merge, split, or delete pages
• Compress PDFs while preserving selectable text and vector graphics
• Resize mixed pages to standard paper sizes
• Add page numbers, N of M, Roman numerals, letters, or Bates numbering
• Add or remove an open password
• Create and edi