Check only what you specify
Set optional size, page-count, and page-size limits. Encryption is always checked, and dangerous actions are checked by default.
Transparent PDF checks
PDF Preflight
See what does not meet your requirements, review exactly what ToolNest would change, approve it, then inspect the actual result.
PDF Preflight workspace
1 - Requirements
What must this PDF meet?
Leave optional limits blank. No portal preset is assumed.
2 - Your PDF
Select once
The same in-memory file continues through inspection, approved changes, and reinspection.
Approve before changes
Passed checks, supported fixes, manual decisions, preservation intent, and unchecked areas stay separate.
Inspect the actual output
Supported removals and any accepted Structure optimization are followed by a fresh inspection of the in-memory output.
No acceptance guarantee
This prototype does not know portal-specific rules and does not automatically resize pages or use destructive compression.
Helpful answers
PDF Preflight FAQs
Is my PDF uploaded?
No. Inspection, approved changes, and output reinspection happen in your browser. The file is not uploaded to ToolNest.
What can this prototype change?
It can remove approved metadata, embedded files, dangerous active actions, external URI links, and review comments using existing ToolNest sanitizers. It can also try lossless Structure optimization when an unsigned PDF exceeds your size limit.
Does PDF Preflight guarantee portal acceptance?
No. It checks only the requirements you enter and the bounded safety categories shown. Unsupported or unchecked requirements remain visible.
What happens to signed PDFs?
ToolNest reports digital signature structure and disables automatic rewriting because rewriting can invalidate an existing signature. It does not validate the signature cryptographically.