logo
menu

AI Detector for PDF

Verify the integrity of any document instantly. Our specialized PDF engine detects AI-generated text within complex layouts, covering ChatGPT, Gemini, Claude, and academic LLMs.
Content
Paste Text
Upload Document
Try Example
ChatGPT
Claude
Human
Human + AI
0 / 600 words
Result
AI-generated
?%
Mix-generated
?%
Human-written
?%
Add text and click "Detect AI" to see the results.
Highlighted AI-Generated/Paraphrased Sentences
List sentences likely AI-generated here
500K+
PDF Documents Analyzed
99%
Precision on Long-Form Docs
4.9/5
Professional Trust Score

Why choose our PDF AI Detector

Deep Document OCR

Deep Document OCR

Our engine extracts text from scanned PDFs and complex layouts with high precision, ensuring no AI-generated content hides in images or tables.

Multi-Model PDF Scanning

Multi-Model PDF Scanning

Specifically tuned to identify the linguistic fingerprints of GPT-4, Gemini, and Claude within formal reports, whitepapers, and academic submissions.

Structural Analysis

Structural Analysis

We analyze the flow and syntax of entire documents, detecting subtle AI-assisted paraphrasing that generic text-only scanners often miss.

Global Language Support

Global Language Support

Process international PDF reports in English, Spanish, French, German, and more, maintaining detection accuracy across diverse technical vocabularies.

Enterprise-Grade Privacy

Enterprise-Grade Privacy

Your sensitive PDF data is protected. We use 256-bit encryption and never store your documents or use them to train our models.

Visual Heatmaps

Visual Heatmaps

View your PDF with a color-coded overlay. We highlight specific paragraphs and sentences likely to be AI-generated for rapid manual review.

Specialized PDF Forensics

Unlike basic text scanners, our tool is built for the PDF format. It accounts for document metadata, formatting, and technical jargon to distinguish human expertise from AI-generated filler.

Full Document Integrity Reports

Download a comprehensive PDF audit report. Each analysis includes a global probability score, page-by-page breakdowns, and specific markers of AI-generated patterns.

Evolving Detection Logic

As AI models update, so do we. Our algorithms are trained on the latest PDF-based datasets to ensure we catch even the most sophisticated “humanized” AI outputs.

How to verify your PDF documents

Upload Your PDF

Upload Your PDF

Drag and drop your .pdf file directly into our secure portal. We handle everything from single-page memos to 100-page technical reports.

arrow
Deep Scan Processing

Deep Scan Processing

Our system parses the document structure, extracting text and analyzing linguistic variance against known AI writing signatures in real-time.

arrow
Review the PDF Audit

Review the PDF Audit

Receive a detailed visual report showing exactly which sections of your PDF are human-authored and which show signs of AI generation.

Perfect for professional document review

For Legal & Compliance

For Legal & Compliance

Ensure contracts, disclosures, and legal filings are drafted by human experts to maintain professional liability standards.

For Academic Journals

For Academic Journals

Screen submitted PDF manuscripts for AI-generated sections to uphold the highest standards of peer-reviewed research integrity.

For Corporate Reports

For Corporate Reports

Validate that annual reports, whitepapers, and market analyses reflect genuine human insight and proprietary research.

For Grant Proposals

For Grant Proposals

Verify the authenticity of funding requests and project proposals to ensure they represent the true voice of the applicants.

Who is this PDF AI Detector for

University Admissions

University Admissions

Screen PDF personal statements and application essays to ensure you are evaluating the student’s own voice and writing ability.

Journal Editors

Journal Editors

Quickly audit high volumes of PDF submissions for AI-generated content before moving them to the peer-review stage.

Legal Professionals

Legal Professionals

Verify the origin of evidence, affidavits, and legal briefs submitted in PDF format to ensure procedural authenticity.

Procurement Officers

Procurement Officers

Analyze PDF bids and vendor proposals to ensure that technical specifications and solutions were developed by human engineers.

Financial Analysts

Financial Analysts

Scan investment prospectuses and financial PDF reports to identify generic AI-generated filler versus expert human analysis.

Technical Writers

Technical Writers

Audit your final PDF manuals and documentation to ensure they meet client requirements for 100% human-authored content.

Trusted by Document Professionals

Marcus Thorne

Marcus Thorne

Senior Compliance Officer

starstarstarstarstar

This is the only tool that handles our 50-page PDF compliance reports without crashing. The accuracy in identifying AI-generated legal jargon is impressive.

Dr. Sarah Jenkins

Dr. Sarah Jenkins

Academic Journal Editor

starstarstarstarstar

Essential for our editorial workflow. It preserves the PDF layout while highlighting suspicious sections, making it easy to verify citations and data.

Robert Vance

Robert Vance

Legal Consultant

starstarstarstarstar

Fast, secure, and reliable. I use it to screen all incoming PDF briefs. It provides the objective proof I need to ensure document authenticity.

Elena Rodriguez

Elena Rodriguez

Grant Coordinator

starstarstarstarstar

We receive hundreds of PDF proposals. This tool helps us filter out AI-generated fluff so we can focus on the most genuine and innovative projects.

David Wu

David Wu

HR Director

starstarstarstarstar

When reviewing PDF portfolios and resumes, this detector is a lifesaver. It helps us find candidates who actually have the communication skills they claim.

Linda G.

Linda G.

Freelance Technical Editor

starstarstarstarstar

My clients demand 100% human content in their whitepapers. This PDF scanner gives me a professional report I can attach to my final delivery.

Frequently Asked Questions

Need help with PDF AI detection? Find answers to common technical questions below.

For security reasons, you must remove the password from the PDF before uploading. Once decrypted, our tool can perform a full forensic scan of the content.

Yes, our tool includes integrated OCR (Optical Character Recognition) that extracts text from scanned images within the PDF to check for AI patterns.

Free users can upload PDFs up to 10MB. Premium users enjoy expanded limits up to 100MB, suitable for large books and technical manuscripts.

Our algorithm is designed to ignore non-textual data like charts and tables, focusing specifically on the narrative text to avoid false positives in data-heavy documents.