PDF Utilities
Grammar Corrector
Upload a document and download it with grammar and spelling automatically fixed.
Drop files here or click to browse
Accepts .pdf,.docx,.txt,.pptx · One file at a time · Up to 100 MB each
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Upload a PDF, Word, plain-text or PowerPoint file and download a version with grammar and spelling automatically corrected. The corrector uses LanguageTool — the same open-source engine that powers many desktop writing assistants — with a lightweight pyspellchecker fallback for edge cases. Ideal for polishing emails, drafts and reports before publishing.
Common ways to use Grammar Corrector
Polish an ebook draft
Fix hundreds of typos in one pass instead of scrolling every page.
Clean up OCR output
OCR often introduces "rn" for "m" — the corrector reverses common OCR mistakes.
Improve translated docs
Machine-translated drafts benefit from a grammar pass before publication.
Clean student essays
Teachers see cleaner submissions when students run their drafts through first.
Prep marketing copy
Blog posts and landing pages ship faster when a machine catches obvious typos.
Grammar Corrector — frequently asked questions
Which language does it support?
English (US and UK). We can extend to Spanish, French, German and more on request — LanguageTool ships with 20+ languages.
How accurate is it?
LanguageTool typically catches 85–95% of common grammar and spelling issues. Style suggestions (passive voice, wordiness) are conservative.
Does it change my formatting?
Word (.docx) and PPTX outputs are rewritten as PDF for reliability. TXT stays TXT. If you need to preserve heavy Word formatting, run the check on the extracted text and paste corrections back manually.
Are my documents used to train AI?
No. Files are processed locally and deleted within one hour. No content is sent to any external LLM or training pipeline.
Can it fix domain-specific jargon?
Medical, legal and scientific terms may be flagged as misspellings — add them to your document's glossary or ignore those specific suggestions.
Pro tips for Grammar Corrector
- For long documents, split into chapters first, correct each, and merge back.
- After correcting, run PDF to Word if you need to keep editing the corrected version.
- Combine with the on-page Grammar Check panel that runs on any converted output to preview issue counts before running a full correction.
How to use Grammar Corrector
- 1. Upload — drop your .pdf,.docx,.txt,.pptx file(s) into the box above or click to browse.
- 2. Configure — set any tool options (password, angle, watermark text) if applicable.
- 3. Convert — click Convert now. Processing usually takes 3–10 seconds.
- 4. Download — save the result to your device. Your file will auto-delete from our servers in 1 hour.
Why use Grammar Corrector?
Free & unlimited
No signup, no daily limit, no watermark on the output.
Private by default
HTTPS upload, auto-delete after 1 hour, zero tracking of your document contents.
Works everywhere
Windows, macOS, Linux, Android, iOS — anywhere with a modern browser.