CometPDF is available as a Portable ZIP for users who want to run the app without installation. Extract the ZIP, open CometPDF, and convert files locally on Windows with no account and no uploads.
A portable PDF converter is useful for quick testing, shared computers, restricted environments, temporary workstations, or users who prefer not to install software. CometPDF's portable package keeps the same local conversion idea: files are processed on the Windows computer, not uploaded to an online converter.
The portable version can convert supported files to PDF and export PDFs to other formats. It is the easiest way to try CometPDF before deciding whether to use the installer.
If Windows or Chrome shows a warning, it is because CometPDF is not code-signed yet. The installer has 0 detections on VirusTotal across 70 antivirus engines, and the Portable ZIP can be used without installation.
No. Extract the ZIP and run CometPDF from the extracted folder. No setup wizard is required.
No. The portable version converts files locally on your Windows computer, just like the installer version.
No. Right-click Explorer integration requires installer setup. Portable mode is designed to run without changing Windows integration.
The installer is better for everyday use because it can add shortcuts, uninstall support, and optional Explorer integration. Portable is better for quick use without setup.
Yes. You can keep the portable ZIP for testing and use the installer later if you want full Windows integration.
Related: security checks, right-click to PDF.