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Security & Trust

Last updated: 24 August 2026

Files stay on the device

Every tool runs in the browser with open-source libraries and WebAssembly. Choosing a file does not POST it to ManageMyPDF, Cloudflare, or any other document-processing API. We do not operate a file-upload backend.

Downloads are created as local browser blobs (PDF, JPEG, or ZIP of JPEGs) after you click Download. The site never offers executables, browser extensions, or installer packages.

What the browser is allowed to do

  • HTTPS only, with HSTS (max-age=31536000; includeSubDomains; preload).
  • connect-src is limited to this origin plus Google advertising hosts. Scripts cannot send document bytes to an arbitrary website.
  • object-src is none, frames cannot embed this site, and clickjacking is blocked with X-Frame-Options: DENY.
  • Camera, microphone, geolocation, payment, and USB are disabled in Permissions-Policy.
  • Incoming files are checked by magic bytes. Legacy `.doc`, macro-enabled Word files, encrypted archives, and zip bombs are rejected.

Researchers can read the same policy at /.well-known/security.txt.

Libraries that process files

Processing uses well-known client-side packages, not a hidden native binary:

Why some organisations still warn

Workplace proxies (Microsoft Defender, Cisco Umbrella, Zscaler, Palo Alto, and similar) often flag sites that are new, uncategorised, or in the same bucket as file converters. Fake PDF tools are a common malware lure, so unknown domains in that category start with low reputation. Google Safe Browsing also reports "no data" until a domain has enough history.

Display ads from Google AdSense can also land a site in an advertising category. Ads are loaded from Google; they are not used to install software.

Those warnings are reputation and category scores, not proof of infection. Suggested category if you recategorise the domain: Productivity / Online Document Tools. Suggested action: allow https://managemypdf.com for staff who need the tools.

Independent checks

Report a false positive

If a product labels this site unsafe, send the vendor a review request and point them here:

Security researchers can report a vulnerability through this page. We do not collect personal data on ManageMyPDF accounts because the site has none. See the Privacy Policy and Terms of Use.