Is this tool really free?

Yes, all our PDF tools are completely free to use with no hidden costs, subscriptions, or per-file charges. We support the service through non-intrusive advertising, not by charging for basic document operations. You can use any tool as many times as you like, with no daily limits, file size restrictions, or account requirements whatsoever.

Absolutely. All PDF processing happens directly in your browser using local JavaScript and WebAssembly libraries. Your files are never uploaded to any server, never stored in the cloud, and never transmitted over the internet. The files remain entirely on your device from start to finish, giving you complete control over your sensitive and confidential documents.

Why remove JavaScript from PDFs?

JavaScript in PDFs has been exploited in numerous security vulnerabilities targeting PDF reader software. Malicious PDFs can use scripts to execute unauthorized code, access the file system, make network requests, or exploit parser vulnerabilities when the document is opened. Removing JavaScript from PDFs you receive from untrusted sources significantly reduces the attack surface.

Will removing JavaScript break the PDF?

The visual content and static interactive features of the PDF remain intact after JavaScript removal. However, any functionality that depends on JavaScript will stop working — this includes calculated form fields, dynamic field validation, conditional page display, and automated actions that trigger on document open or print events. Review the PDF afterward to verify that essential functionality is preserved.

Can I tell if a PDF contains JavaScript before removing it?

Yes, use the PDF Statistics tool to check whether a document contains JavaScript. The stats report includes a section that indicates the presence of JavaScript actions in the document. If you are unsure about a received PDF, you can also open it in a sandboxed environment or a PDF reader that disables JavaScript execution by default before using this tool.

What types of JavaScript are removed?

The tool removes all JavaScript actions embedded in the PDF including document-level scripts (which run when the document opens), field-level scripts (attached to form fields), and action-level scripts (triggered by events like button clicks or page turns). All forms of JavaScript execution are eliminated from the output document.

Does removing JavaScript affect the file size?

The impact on file size is typically minimal, as JavaScript code is usually a small fraction of the total PDF size. Documents that rely heavily on JavaScript for complex form calculations or display logic may see a modest reduction in file size, but most files will show negligible change. The primary benefit is security improvement, not file size reduction.

PDF Tools

Client-side processing

Organize

Merge PDF
Split PDF
Rotate PDF
Page OrganizerNew
Reverse PagesNew
Insert PagesNew
Duplicate PagesNew
Interleave PDFsNew
Delete PagesNew
Extract PagesNew

Edit

Watermark PDF
Header & Footer
Add Page NumbersNew
Flatten PDFNew
Crop PDFNew
Sign PDFNew
Redact PDFNew
Stamp PDFNew
Add BackgroundNew
Bates NumberingNew
Add BookmarksNew
Add LinksNew
Add AttachmentsNew
Page LabelsNew
Add MarginsNew
Auto-CropNew
Remove AnnotationsNew
Fill PDF FormNew

Security

Encrypt PDF
Unlock PDFNew
Remove MetadataNew
Remove JavaScriptNew

Analyze

Extract Content
PDF Statistics
Compare PDFs
Edit MetadataNew
Repair PDFNew
PDF to TextNew
Extract AttachmentsNew
OCR PDFNew
Validate PDFNew
Visual CompareNew

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All processing happens in your browser. No files are uploaded to any server.

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Remove JavaScript