PDF Text Cleaner

Fix PDF copy-paste artefacts — remove hyphens, double spaces, and ligature encoding issues

All PDF Reading

Paste PDF text

Fixes soft hyphens, ligatures (fi, fl, ff), smart quotes, zero-width characters, double spaces, and hard-wrapped lines from PDF copy-paste.

More in PDF Reading

Note-to-Markdown Snapper

Formats raw PDF annotations into atomic Markdown notes with backlinks.

ArXiv Sync Monitor

Checks ArXiv preprint IDs against the API to detect published DOIs.

Supplemental Fetcher

Fetches supplementary material links for a DOI via Unpaywall and CrossRef.