PrivacyWhy Digital Signatures Can Break after Editing a PDF
Understand the difference between a visible signature image and a cryptographic PDF signature.
Editorial library
Document privacy and PDF workflow articles
Practical articles on document privacy, file sizes and getting uploads accepted by online forms.
Privacy
PDF EditingBrowser PDF Compression versus Ghostscript Compression
Understand what browser rewriting can do and when server-side Ghostscript processing adds value.
WorkflowsHow to Scan Documents with a Phone and Get a Readable PDF
Improve lighting, alignment, focus, page order, and output size when using a phone camera.
PrivacyA Practical Document Privacy Checklist before You Upload Anything
A pre-upload checklist covering file contents, metadata, hidden data, recipients, and retention.