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PDFWix
What it is
PDFWix is a free online service for PDF and image tasks, available on the web, Android, and iOS. Its tools can merge, split, compress, convert, edit, sign, secure, and repair PDFs, as well as organize pages, fill forms, add watermarks, redact content, edit metadata, and run OCR. Image utilities cover compression, resizing, cropping, watermarking, and format conversion. The Free web app plan costs nothing and includes more than 35 PDF tools, no daily task limits, no watermarks, and no signup requirement. Most tools run in the browser using WebAssembly. Protect PDF and Unlock PDF instead process files on the service’s servers; PDFWix says those files use TLS 1.3, are handled in memory, and are not written to disk. Browser tools are subject to device memory, while the site gives about 25 MB per request for Protect and Unlock and also lists different figures elsewhere. PDFWix is not HIPAA certified and recommends browser-side tools for protected health information. Its remote MCP server supports AI assistants such as Claude using OAuth 2.1; its REST API is pre-launch with a waitlist open.
For and against
For
- Free plan includes more than 35 PDF tools.
- No daily task limits or watermarks.
- No signup is required.
- Most tools run in the browser.
Against
- Protect and Unlock process files on servers.
- Browser tools have a device-memory limit.
- Not HIPAA certified.
- REST API remains pre-launch.
The verdict
PDFWix offers a broad set of PDF and image tools without signup or daily task limits. Its server processing exceptions, device-memory constraints, and stated compliance limits matter for sensitive or large files.
Who it suits
PDFWix may suit students, lawyers, HR teams, freelancers, healthcare workers, and developers looking for PDF or image utilities. Those handling protected health information should note its recommendation to use browser-side tools and its lack of HIPAA certification.
Plans and prices
Free web app
35+ PDF tools · no daily task limits · no watermarks · no signup required
Read 8 Oct 2026 · pdfwix.com
On the record
- Company
- PDFWix describes itself as an independent project built and maintained by the PDFWix Team.pdfwix.com · read 8 Oct 2026
- Compliance
- PDFWix says it is not HIPAA certified and recommends browser-side tools for protected health information.pdfwix.com · read 8 Oct 2026
- Developer API
- The developer page describes a REST API as pre-launch, with a waitlist open and pay-as-you-go pricing planned.pdfwix.com · read 8 Oct 2026
- File processing
- The site says most PDF tools run in the browser using WebAssembly, while Protect PDF and Unlock PDF process files on its servers.pdfwix.com · read 8 Oct 2026
- File size limits
- The homepage FAQ gives browser tools a device-memory limit and says Protect and Unlock accept files up to about 25 MB per request; another FAQ answer gives different figures.pdfwix.com · read 8 Oct 2026
- Image tools
- The site also lists image tools including compression, resizing, cropping, watermarking and format conversion.pdfwix.com · read 8 Oct 2026
- Integrations
- The site describes a remote MCP server for AI assistants such as Claude, with OAuth 2.1 authentication.pdfwix.com · read 8 Oct 2026
- Intended users
- The site presents use cases for students, lawyers, HR teams, freelancers, healthcare workers and developers.pdfwix.com · read 8 Oct 2026
- PDF features
- Tools include PDF page organization, form filling, watermarks, signatures, redaction, metadata editing and OCR.pdfwix.com · read 8 Oct 2026
- Security
- The security page says server-processed files use TLS 1.3, are processed in memory and are not written to disk.pdfwix.com · read 8 Oct 2026
- Support
- PDFWix lists [email protected] for support and issue reports.pdfwix.com · read 8 Oct 2026
- What it does
- PDFWix offers online tools to merge, split, compress, convert, edit, sign, secure and repair PDFs.pdfwix.com · read 8 Oct 2026
