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Pdfmaster.app Suspicious Shop

September 17, 2026 at 9:20 PM
Suspicious Shop
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Checked by Website Reputation Checker
Table of Contents
Danger Zone
Risky Territory
Caution Advised
Trusted but Verify
Safe & Secure

Pdfmaster → Safety Check

First checked September 19, 2025 at 7:52 PM
Website content and technical signals analyzed
Method: automated checks.
Every website owner can claim their profile for free and engage with reviewers.
Suspicious Shop This site is classified as Suspicious Shop based on multiple risk signals, including 1 blacklist detections, heuristic security signals, and a low 1.3/5 user rating from 796 reviews. These risks are driven by active warning signals despite the site's longer domain history.
Trust signal radar Normalized trust signals for pdfmaster.app Domain Maturity: 1452 days Domain Maturity Warning Cleanliness: 1 detections Warning Cleanliness Safety Level: 6 negative tags, 1 warning signal Safety Level Positive Signals: 2 positive signals Positive Signals Popularity: Estimated low traffic without Tranco or social profile data Popularity Trust Zone: .app Trust Zone Operational Signals: 3 detected services Operational Signals Location Credibility: Hosting country IS Location Credibility
Figure 1. Trust signal radar for pdfmaster.app. Larger shaded area indicates stronger trust signals.

How we scored pdfmaster.app

On-page mentions:
Billing Issues, Microsoft Software
Tech signals:
Helpdesk, React Platform, Next.js Framework
Negative signals:
  • security-provider warnings
  • a low third-party reputation score
  • low third-party review ratings
  • heuristic signals associated with scam
  • automated caution checks
Positive signals:
  • a long-term domain history (4 years)
  • multi-language support
Context signals:
  • content related to software products and downloads
Review sentiment:
Negative
1.3 / 5 ★☆☆☆☆
Based on analysis of 796 reviews from SmartCustomer and other public sources.
1 /100
Trust Score
4 years
Domain Age
IS
Location
1
External provider warnings
Last checked September 17, 2026 at 9:20 PM by Gridinsoft Trust Model v2.5.4

What is Pdfmaster?

Pdfmaster.app is listed as a suspicious shop. Reports in this class often describe payment accepted first, delivery issues later.

Most common outcomes after checkout:

  1. No shipment: order confirmed, item never arrives.
  2. Wrong item: delivered product does not match listing.
  3. Low-quality copy: counterfeit or heavily downgraded substitute.
  4. Damaged/used goods: item arrives broken or clearly not new.
Pdfmaster.app
Figure 2. Website screenshot for Pdfmaster.app. 2026-09-18 00:20:31

If you buy from a site with this profile, use payment methods with chargeback protection and keep full order evidence (receipt, product page, seller messages, tracking history).

This domain was registered September 26, 2022 at 8:00 AM through the company Namecheap Inc. and had the owner Gridinsoft privacy protected.
For complaint

Is pdfmaster.app safe?

— Unfortunately, not likely.

🚨 Gridinsoft blocks this website because it was classified as suspicious shop.

pdfmaster.app has a blacklist warning and a 1/100 trust score. Verify the site identity before use and avoid sending sensitive or payment data.

What are the risks of pdfmaster.app?

This website shows characteristics commonly associated with fraudulent online shops, including suspicious pricing and payment methods.

Why is pdfmaster.app marked "Suspicious Shop"?

Gridinsoft evaluates pdfmaster.app, focusing on limited website popularity, suspicious content indicators (Low SmartCustomer Score, Heuristic - Scam, Heuristic Risk), hosting technology and infrastructure, SSL certificate status, website reputation across multiple databases, customer reviews from various independent platforms (796 reviews). We weigh these indicators to calculate the trust score.

Note: Automated systems are not perfect — while the evidence suggests risk, there is still a chance the site is legitimate. We recommend you check the website using detailed analysis or by contacting the company directly through verified channels.

Pdfmaster Digital Footprints

A structured view of the site's detected themes, page signals, and related online footprint elements.

Billing Issues

The website contains dedicated sections addressing payment disputes, subscription management, chargeback procedures, refund policies, and other financial transaction concerns, indicating established billing operations.

Helpdesk

This site includes structured support channels such as help center, ticketing, chat, or service contact pages.

Cookie Consent

pdfmaster.app implements a cookie-consent interface for managing tracking and data-collection preferences.

Discount
Microsoft Software
React Platform

This website is built using React, a popular JavaScript library for creating interactive user interfaces.

Multilanguage

The website provides multi-language support, demonstrating international accessibility and commitment to diverse user populations. Multi-language implementation typically indicates professional development standards and global operational scope, representing a positive trust indicator.

Webpack Module Bundler
Next.js Framework
Long Term SSL Certificate

The SSL certificate for pdfmaster.app is valid for more than 6 months, indicating a long-term commitment to security and trust.

AI-generated Text

This site contains text patterns consistent with machine-generated or AI-assisted content production.

Low SmartCustomer Score

This site has a low SmartCustomer score (2.0) based on 11 reviews, indicating a low level of trust from customers.

Heuristic - Scam
Heuristic Risk
Listed by Gridinsoft

Gridinsoft Internet Security classified pdfmaster.app as unsafe. As a VirusTotal partner, our detections contribute to broader protection across tools and browsers.

Low Scamadviser Score

Independent security assessment from Scamadviser indicates this site has received a low trust rating, suggesting potential security risks or operational concerns requiring user caution.

Color Guide
  • Requires special attention Marks high-risk findings that should be reviewed first.
  • Exercise caution Highlights areas involving user data, payments, or permissions.
  • Positive indicators Shows trust signals that support the site's reliability.
  • Neutral General context that does not increase or reduce risk on its own.

External provider warnings: 1/26 Suspicious Shop

This section shows what independent external security sources say about this site.

A warning appears when one or more sources report malware, phishing, abuse, or other safety concerns. Each row shows the source and its verdict.

If no source reports a warning, the site is shown as clear in this section.

Scamadviser
Warned

External provider results for Pdfmaster.app, last checked September 17, 2026.

Domain Information

Created September 26, 2022 at 8:00 AM Updated: March 18, 2025 at 6:08 PM · Expires: September 26, 2025 at 8:00 AM
Domain Age 4 years
Registrant Gridinsoft privacy protected IS (Iceland)
Registrar Namecheap Inc. IANA ID: 1068
Abuse Email [email protected]
Domain Status Client Transfer Prohibited DNSSEC: UNSIGNED
Top Level Domain .app Generic TLD

Technical Details

IP Address 52.85.31.52
Hostname server-52-85-31-52.jfk50.r.cloudfront.net
Hosting Provider AS16509 Amazon.com, Inc. New York City, New York, US
SSL Certificate Amazon RSA 2048 M04 TLS 1.3 · Valid for: 7 months · from August 24, 2026 at 12:00 AM · to March 9, 2027 at 11:59 PM
Name Servers ns-1149.awsdns-15.org
ns-123.awsdns-15.com
ns-1925.awsdns-48.co.uk
ns-698.awsdns-23.net

Content Analysis

Website title PDF Editor and Converter, Compress PDF Files Online - PDF Master
Website description Convert files to and from PDF format using PDF Master services. Optimize document workflows. Convert and edit documents into digital formats, Word, Excel, and PowerPoint.
Available languages
Mentioned hosts (7)
www.google.com www.gstatic.com pdfmaster.app fonts.gstatic.com api.pdfmaster.app widget.trustpilot.com fonts.googleapis.com

Security Analysis

Detection Signatures These signatures are used to generate the security fingerprint below.
Billing Issues Cookie Consent Discount Microsoft Software React Platform Webpack Module Bundler Next.js Framework Low SmartCustomer Score
Verified Services This domain has been verified by the following legitimate services and organizations, confirming authentic ownership and proper email security configuration.
Esputnik Google GWS Google Workspace verification. Google Verification Domain ownership verified by Google.
Security Fingerprint Unique identifier based on site analysis
green-blossom-angel-winter
6 Steps and Tips Avoid Online Shopping Scams
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Online shopping offers unmatched convenience and is accessible around the clock. However, it's crucial to stay prepared for potential scams.
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How to block Pdfmaster.app?

Our Anti-Malware can automatically block access to pdfmaster.app if it is flagged as malicious.

  1. Install and run the protection.
  2. The program will block flagged domains and remove related threats.

Exclusion

If you believe pdfmaster.app is safe, you can add it to the exclusion list:

  1. Open Gridinsoft Anti-Malware → Tools → Ignore List.
  2. Go to the Internet tab and add pdfmaster.app.

See detailed instructions for more options.

Are You the Owner?

If you own Pdfmaster.app and want to challenge the trust score, please submit a review request via portal.gridinsoft.com. There you can claim your profile and add verified company/contact details. If you cannot access the portal, email legal(at)gridinsoft.com with proof of legitimacy and contact details. We never charge website owners for reviews or reconsideration requests. For more information, please review our Disclaimer.

Leave a review

Share your real experience with pdfmaster.app. Is it a trustworthy site, or did you encounter any issues? The more detail you provide, the more helpful your review is for others!

Publication Tip

- Your feedback helps us improve our security scores.
- Detailed reviews describing your real-life experience have a much higher chance of being published.
- Your email remains confidential.

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Your score for pdfmaster.app
1
points /100
The score is based on a 1-100 scale, with 100 being the most reputable.
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