Privacy Architecture Analysis · PDF Tools
Sejda Web vs. Sejda Desktop vs. Shrinkify: Three Different Privacy Models in One Category
Sejda is unusual because it offers both a cloud tool and a desktop application that processes locally. This makes it a genuinely nuanced comparison. The free web tier has hard limits. The desktop app is strong but costs $63/year. Here's a clear breakdown.
Three processing models compared
- →Files uploaded to Sejda servers
- →Deleted after 2 hours
- →3 tasks/hour limit
- →50 MB max per file
- →Max 5 files merged
- →No account needed
- →Local processing only
- →No upload ever
- →Unlimited tasks
- →Requires installation
- →$63/year (or $9/month)
- →Windows + macOS
- →Browser RAM only
- →No upload, no install
- →Unlimited std. tasks
- →Works offline (cached)
- →Free, always
- →No account
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What Sejda does that Shrinkify doesn't
Sejda lets you click on existing text in a PDF and change it directly. This requires parsing font data and glyph maps — difficult to do reliably in a browser. Shrinkify doesn't support text editing inside PDFs.
Sejda supports overlaying new text, images, and shapes onto PDF pages — useful for adding watermarks, stamps, or annotations to read-only documents.
Converts scanned image-based PDFs into searchable, selectable text. Available on both web and desktop versions of Sejda. Not available in Shrinkify.
Converts standard PDFs to the ISO-standardized PDF/A archival format — required for long-term legal document storage in courts and government systems. Sejda supports this; Shrinkify doesn't.
Sejda free web tier — exact limits
Don't need OCR or PDF text editing?