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PDF Lineariser

Rewrites a PDF into the linearised layout of ISO 32000-1 Annex F — first-page section, page offset and shared object hint tables, split cross-reference — and reports how few bytes page 1 now needs.

🔒 Runs entirely in your browserlinearizeweboptimize

The file is rewritten inside this tab. It is not uploaded.

Drop a PDF you are putting on the web

The structure is rewritten so the first page arrives first. The pages themselves do not change.

Feed it from

Next

These accept what this tool produces, so the result can go straight in.