PDF Architect vs PDFWix

PDF Architect is a Windows PDF viewer and editor for creating, viewing, and editing PDF files. It can change text and images, manage pages, merge files, and insert or customize page elements. Conversion covers PDF, Word, Excel, HTML, text, and image formats. Review features include annotations and comparing two PDFs; form tools support creating and filling fillable forms. Secure adds passwords, permission levels, and digital signatures. E-Sign lets users prepare, send, and track documents in the application and creates a manifest for archiving the signature process; it requires a PDF Architect account. The Free plan costs nothing and includes viewing, creation from Word, Excel, and PPT, page rotation, deletion and rearrangement, and merging. Business deployment supports MSI packages and GPO, and the maker describes it as cloud-optional and local by default. Microsoft Office is required for plug-in use and Word conversion.

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.