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What is PDF9.Ai?

PDF9.Ai is a free, AI-powered PDF platform that integrates 68 different tools into a single browser-based environment. It includes features such as a PDF reader, a robust editing suite, conversion utilities, electronic signature capabilities, and enterprise governance controls. Most of its functionalities function seamlessly in the browser, making sure that files stay on the user's device for security. With the support of nine AI models, users can have conversations about documents, obtain summaries, and translate content into more than 50 languages without incurring extra fees. Key features encompass merging, splitting, compressing, and organizing PDFs, as well as converting files to and from various formats like Word, Excel, PowerPoint, HTML, CAD, and numerous image types; conducting OCR; using PAdES/PKCS#7 digital signatures with comprehensive audit trails; performing intelligent PII redaction; completing U.S. government forms; and comparing different documents. PDF9.Ai is designed to serve a wide range of users, including students, freelancers, legal professionals, accountants, HR teams, and corporations. Collaborative teams can utilize features such as single sign-on (SSO), role-based access control (RBAC), audit logs, and a compliance-oriented infrastructure, while desktop applications are also available for Windows and macOS, thus increasing accessibility and user convenience. This versatility makes PDF9.Ai a valuable tool for anyone needing efficient PDF management and collaboration.

What is Geyi?

Geyi operates as a cloud-based service that focuses on AI-enhanced document translation and processing, specifically designed for researchers, students, translators, and anyone working with texts in foreign languages. Its capabilities extend to translating complete documents, which include formats such as PDFs, Word files, EPUBs, and even scanned pages, thereby enabling the processing of entire books. The platform offers various modes for PDF translation that either preserve the original layout or modify complex pages for improved readability. Additionally, its OCR technology effectively extracts text from scanned materials, accommodating multi-column formats and vertical scripts like Japanese and Chinese. Users can produce outputs in several formats, including PDF, Word, Markdown, and EPUB, as well as bilingual versions that showcase both the original text and its translation. Among its many features are text translation, file conversion, document extraction, and tools for converting scholarly articles into editable presentations. Geyi also includes a Zotero plugin, allowing users to translate PDF attachments directly from their research libraries, compatible with Zotero versions 7 to 9 across Windows, macOS, and Linux systems. The platform supports translation in more than 20 languages, with credit costs varying based on document type, layout mode selection, and subscription level, which makes it an adaptable solution for various user needs. This flexibility ensures that users can efficiently manage a diverse array of documents while accessing vital features that cater to their unique requirements, enhancing productivity and ease of use significantly.

Media

Media

No images available

Integrations Supported

Claude
Claude Duet
Claude for Legal
Gemini
Google Cloud AI Infrastructure
OpenAI
Stripe
Wasabi

Integrations Supported

Zotero

API Availability

Has API

API Availability

Has API

Pricing Information

$12 per month
PDF9 AI offers a free version with access to core PDF tools. Paid plans are available for additional features.
Free Version

Pricing Information

$4.99
Membership plans include a monthly credit allowance and tier-specific features; credit packs can be purchased separately. File translation costs 2–8 credits per page depending on format, layout mode, and translation tier, with a 10-credit minimum per translation job. New accounts receive 300 credits and a one-day Research-tier free trial.
Free Version
Free Trial Offered?

Supported Platforms

SaaS
Windows
Mac

Supported Platforms

SaaS
Windows
Mac
Linux

Customer Service / Support

Web-Based Support

Customer Service / Support

24 Hour Support
Web-Based Support

Training Options

Documentation Hub

Training Options

Documentation Hub
Online Training

Company Facts

Organization Name

9 Rank LLC

Date Founded

2025

Company Location

United States

Company Website

pdf9.ai/

Company Facts

Organization Name

Nayuta Technology and Culture Company Limited

Date Founded

2025

Company Location

Hong Kong

Company Website

www.geyi.net

Categories and Features

AI PDF

Not specified

Categories and Features

AI PDF

Not specified

AI Translation

Not specified

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