Comfortable and Immersive PDF Reading 

View PDFs delightfully with free light and dark mode switching.
Reflow PDF pages and text to fit the screen on mobile.
Smoothly scroll through pages to view a PDF file like real books.
Enable the text-to-speech feature to have PDFs read aloud to you.
Add, rotate, reorder and delete pages in a PDF to fit your needs.

A Collection of Desktop-class Annotation Tools

Swiftly type text, highlight text, and add notes on PDFs for quick review.
Strikethrough, and draw on PDFs to provide colorful comments.
Select and edit all annotations effortlessly in one place.
Add predefined stamps, custom stamps, and dynamic stamps with real-time info.
Enhance comment management with effortless export options.

Seamless and Accurate Format-to-PDF Conversion

Convert PDFs to/from Word, PowerPoint, and Excel files effortlessly;
Transform multiple images to individual PDFs or one multi-page PDF at once;
Easily convert a multi-page PDF to separate images or a single picture;
Convert CAD (DWG and DXF) drawings to PDFs and vice versa.

Efficient PDF Organizer: Compress, Merge, Split in One

Compress PDFs for easy sharing and storage;
Combine two or more PDF files into one seamlessly;
Split a PDF into separate smaller PDF files in a flash.

BASIC FEATURES

SwifDoo PDF for iOS lets you read, annotate, and convert PDF documents on the go; you can view PDFs in light or dark mode, reflow pages/text to fit the screen, scroll smoothly, use text-to-speech to have PDFs read aloud, add/rotate/reorder/delete pages, highlight, underline, strikethrough text, add notes, shapes, stamps (pre-defined, custom, dynamic), search inside PDFs, convert between PDF and formats like Word, PowerPoint, Excel, image formats, DWG/DXF CAD, merge & split PDFs, compress documents with selectable quality levels, protect PDFs with passwords/permissions, print & share files easily. 

WHAT’S NEW

The latest iOS version introduces improvements such as enhanced annotation tools (more stamps, shapes), better conversion speed and accuracy, refinement in reading and reflow modes for improved mobile reading experience, improved UI responsiveness and performance fixes. 

SYSTEM REQUIREMENTS

iOS / iPadOS 14.0 or later; at least ~1 GB RAM; about 150 MB of free storage for installation; device must have sufficient processor speed; Internet connection required for some features like conversion, cloud, text-to-speech, and updates. 

USER INTERFACES LANGUAGES

English, German, French, Traditional Chinese, Spanish, Polish, Portuguese, Japanese, Korean.

BRAND

SwifDoo Technology

TYPE

PDF Editor 

FOR OPERATING SYSTEM

iOS / iPadOS 14.0 or later (runs on iPhone and iPad)

LICENSE CATEGORY

Subscription-based software 

FORMAT

Digital Download 

MODEL

SwifDoo PDF for iOS 2025 

COUNTRY OF USE

United States, Canada, United Kingdom, Australia, Germany, France, Spain, Italy, Japan, China, South Korea, India, Brazil, Mexico, Turkey, Portugal, Poland.

MANUFACTURER COUNTRY

China