SECURITY REPORT · EXTENSHI SCAN

Alto Merge PDF Files by PDFfiller

Edge extension·by airSlate

/ 100 SAFETY SCORE

CRITICAL

Severe indicators. Treat as unsafe until the developer addresses these findings.

Likely abandonedsafety score reduced by 30 points

No update in over 6 years
Built on Manifest V2, which Chrome and Edge are retiring

Why this matters

An unmaintained extension keeps whatever flaws it shipped with, and a listing with users but no owner is an attractive target to buy and repurpose.

Automated analysis of publicly available code — not a professional security audit. It may produce false positives and does not prove an extension is unsafe or safe. Treat it as one signal among many. Disclaimer · Report an issue

How it ranks

Alto Merge PDF Files by PDFfiller's safety score vs every other extension we've scanned

Globally

1%of extensions carry more risk

This extension

Riskier ←→ Safer

Ranked against 375,816 extensions

In Productivity

4%of productivity extensions carry more risk

This extension

Riskier ←→ Safer

Ranked against 6,706 productivity extensions

Findings

median 17Lower is safer

Critical findings

median 0Severity = Critical

Permissions

median 3Declared in manifest

Active users

167

median 141vs category median

Findings breakdown

Automated security signal · 42 distinct issues across 6 severities

distinct issues
detected

Scanners reported 385 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Critical25%

High1945%

Needs Review00%

Medium1638%

Low00%

Info512%

Permissions requested

8 permissions declared

No risky permissions

8 permissions requested — none are flagged as risky.

Medium

Access user identity

Can get OAuth2 tokens and access your Google account identity

Medium

Store local data

Can save data locally in the browser for persistence

Low