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Comparison

Local-first vs cloud PDF tool model

A practical capability matrix based on workflow behavior: privacy, offline support, queue depth, and AI grounding with citations.

CapabilityOnDevicePDF (local-first)Typical cloud tool
Document privacyMost tools process on-device with no upload.Files are uploaded for processing.
Offline capabilityMost tools continue after first load.Network required for processing.
Batch workflowsDesktop queue supports sequential runs with pause/resume.Queue behavior depends on service limits.
Local AI / QAHybrid local retrieval with cited answers and source jumps.AI features typically run on remote inference.
Latency profileImmediate local execution, no upload roundtrip for most tools.Upload + queue + processing + download cycle.
Data controlSessions are local, with explicit clear controls.Retention and deletion follow provider policy.

Note: advanced editor operations may use secure temporary backend processing when browser-only execution cannot reliably produce permanent output.