A second pair of eyes
After reading your own writing several times, your brain fills in missing words and skips over typos. AI Proofreader reads the text of your document with fresh eyes and returns a corrected version along with a summary of what it changed, which is useful for reports, applications, essays, emails you have saved as PDFs, and drafts of every kind.
Language and style options
Choose the language of the text, or let the tool detect it automatically. Then choose how much to change: “Grammar only” fixes grammar and spelling and leaves your style alone; “Style and clarity” also improves readability and flow and explains why; the default combines grammar, spelling, punctuation, capitalization, clarity, and word choice, with brief explanations of significant changes.
What you get and where the text goes
You receive the corrected text and a summary of corrections, which you can copy or download as a .txt or PDF file. Your browser extracts the text; only the text is sent through our server to an AI model. PDF Studio does not keep a copy, but the AI service processes it, so avoid proofreading text you must keep confidential. Each tool allows 10 requests per minute per visitor.
Limits and good practice
About the first 25,000 characters of text (roughly 4,000 words) are checked, so split long documents with Split PDF. The result comes back as plain text, not as a corrected copy of the PDF, so you will need to paste the changes into your original document. AI can occasionally change a meaning or “correct” a deliberate choice such as a name or technical term, so read the corrections before accepting them.