How to humanize an AI-generated document
A step-by-step way to make a long AI-assisted essay, report or assignment read like a person wrote it: copy the text in, paste the result back, and keep its structure and facts.
Open the humanizer. It is free; you paste one section at a time.
Why a whole document is harder than a paragraph
A long document has to be rewritten in parts, and each part can drift: a name spelled two ways, a point made twice, a voice that changes halfway through. AI detectors such as GPTZero also judge the document as a whole: in our tests, two sections that each scored 0% AI alone scored 100% AI together. So split the document at its headings, use the same style for every part, and read the joined result once at the end.
Step by step
- Copy the text out of Word, Google Docs or your PDF. Keep the headings; leave out the title page.
- Open the humanizer and pick the style that fits: Essay for essays and assignments, Academic for papers, Report for reports.
- Paste one section at a time, up to 1,200 words. There is no file upload; Penned works on pasted text. Split at headings so each part makes sense on its own.
- Penned rewrites each paragraph several times, scores every version with an AI detector, and fact-checks the best one against your original.
- Paste the rewrite back into your document and move on to the next section. When all are done, read the whole thing once and check each section in the AI detector.
What Penned leaves alone
- Headings, short lines and lists of names.
- Tables, equations and number-heavy rows.
- Reference entries, quotes, dates, statistics and citations like (Smith, 2021).
After the rewrite
- Add one or two things only you could write: an example from your class, your own opinion, a detail from your data.
- Read every number and name once. Penned fact-checks them, but you know your document best.
- Put back bold, italics and footnotes that the copy and paste dropped.
Questions
How long can the document be?
Any length, a section at a time. Signed in with Google, you can paste up to 1,200 words at a time and rewrite 6,000 words a day for free, enough for a 5,000-word essay in one day. Plus raises that to 45,000 words a day. Guests can try up to 400 words without an account.
Can I upload a Word, Google Docs or PDF file?
No. Penned works on text you paste in. Copy the text out of Word, Google Docs or a PDF, paste it into Penned, and paste the result back. Headings and paragraph breaks survive the copy; bold and italics need to be added again.
Will it change my headings, tables or references?
No. Penned rewrites prose paragraphs only. Headings, short lines, tables, equations and reference entries are passed through as they are.
Is it free?
Yes. A free Google sign-in gives you 6,000 words of rewriting a day and unlimited use of the AI detector page within its hourly limit.
More help: the essay humanizer guide and the research paper guide.