FormForge vs PDFWix
FormForge
pdf-forms.toolsPDFWix
pdfwix.comSide by side
| Figure | FormForge | PDFWix |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| Plans published | 1 | 1 |
| Spec score · PDF Form Software | 8.3 (#8) | 7.4 (#19) |
| Integrations | The privacy policy identifies self-hosted Rybbit for analytics and Netlify hosting; it names no form-submission or workflow integrations. | The site describes a remote MCP server for AI assistants such as Claude, with OAuth 2.1 authentication. |
| Support | The maker invites bug reports and feature requests by email at [email protected]. | PDFWix lists [email protected] for support and issue reports. |
| What it does | FormForge is a browser-based PDF form builder for turning PDFs into fillable forms. | PDFWix offers online tools to merge, split, compress, convert, edit, sign, secure and repair PDFs. |
Plans
In their own words
FormForge
FormForge is a free browser-based tool for turning existing PDFs into fillable forms. Its AI detects fields in flat PDFs and scans, running locally in the browser through WebAssembly. Users can add text, checkbox, radio button, dropdown, signature, date, and number fields, then run Form doctor’s 21 AcroForm checks with one-click fixes. CSV data can be used to generate batches of completed PDFs. Signatures can be drawn or typed in a handwritten style; an optional cryptographic signature can be added on export. Processing and drafts stay on the device in the browser. The installable PWA works offline once its resources are cached, but opening or reloading the page requires a connection. Exports include AcroForm PDFs and ZIPs of filled PDFs, which the site says open in several desktop and mobile PDF readers. FormForge does not edit underlying PDF page content or reorder, delete, rotate, or merge pages. It has no fixed file-size or page-count limit, though practical limits depend on device memory. The free plan requires no account or credit card and has no watermark or page limit.
PDFWix
PDFWix is a free service for PDF and image work, with web, Android, and iOS platforms. Its PDF tools merge, split, compress, convert, edit, sign, secure, and repair files, and also organize pages, fill forms, add watermarks and signatures, redact content, edit metadata, and perform OCR. Image tools handle compression, resizing, cropping, watermarking, and format conversion. The Free web app costs nothing and includes 35+ PDF tools, no daily task limits, no watermarks, and no signup requirement. Most tools run in the browser through WebAssembly. Protect PDF and Unlock PDF process files on servers; PDFWix says those files use TLS 1.3, stay in memory, and are not written to disk. Browser tools have a device-memory limit, while Protect and Unlock accept files up to about 25 MB per request, with another FAQ giving different figures. PDFWix is not HIPAA certified. It lists a remote MCP server using OAuth 2.1 and a pre-launch REST API with a waitlist.