Adobe is the name most people associate with PDF. Adobe PDF Services is a broad API suite for creating, converting, extracting, combining, and manipulating documents.
PDFCanon is narrower by design. It does not try to be a general PDF toolkit. It solves one infrastructure problem: turn untrusted PDFs into byte-stable, auditable canonical documents.
Glasswall and PDFCanon both handle PDFs in security-sensitive contexts. They answer different questions.
Glasswall is primarily a Content Disarm and Reconstruction platform. Its job is to neutralize risky file content before it reaches a user or system.
PDFCanon is a deterministic PDF normalization API. Its job is to turn untrusted PDFs into byte-stable canonical documents with stable SHA-256 hashes and machine-readable audit reports.
iLoveAPI and PDFCanon turn up in the same developer search, but they solve different problems.
iLoveAPI is a utility toolkit: merge, split, compress, convert, and manipulate documents.
PDFCanon is an integrity layer: normalize untrusted PDFs, remove structural drift, produce a stable SHA-256, and return an audit report.