Professional English proofreading and editing services

Trusted by thousands of ESL speakers, students and international businesses.
  • Subject-expert editors Experienced US/UK editors in your field.
  • Quick turnarounds Working 24/7 to meet your deadlines.
  • Secure & confidential Secure, reliable and confidential service.

Frequently Asked Questions

Click below for answers to common questions. Feel free to contact us on [email protected]
How can I trust your service/company?

Cambridge Proofreading LLC is a registered company in Illinois, U.S.A. We have served over 14,000 clients in 80+ countries. We recommend that you read our blog post about avoiding scam proofreading services and carefully review who you trust with your documents.


You can verify our LLC registration and Certificate of Good Standing by searching our company name in the Illinois Department of Business Services database here.


You can also view independent reviews from previous customers of our services on TrustPilot.


We take payments via PayPal (accepts credit/debit cards), the Web’s most popular and secure payment gateway.

Can I request the same editor as before?

Absolutely! Simply note this on the order form and we will assign your new order to the same editor who completed your prior work.

Can you work to a specific style guide/format?

We can edit documents to specific style guides/formats.


Among our 100+ editing professionals, we have format specialists across all the main style guides, including APA, Chicago, Harvard, OSCOLA, Oxford, and others.


If your university or publishing house has provided specific guidelines, we may be able to accommodate these. Please contact us if you have questions.

Do you accept LaTeX files?

We are unable to edit LaTeX files directly. However, if you export or copy and paste your LaTeX source code into a Microsoft Word document, we will leave any programming commands unedited. You can then review our changes in Word and copy and paste the text back into the LaTeX source code.

Do you accept PDF files?

PDF files will be edited by making annotations using Sticky Notes in Adobe. You would then need to manually insert the suggested changes in your publishing software.


Wherever possible, Microsoft Word documents are preferred, as the software enables us to utilize the Track Changes feature to highlight our editing. is a free online tool that converts PDFs to Word files. Please note: this tool can occasionally cause formatting errors, so please check that your document was converted accurately.


Alternatively, copy-and-pasting the text from your PDF file into Word can be effective.


If you have any questions regarding PDF editing, please contact us.

Do you have a money-back guarantee?

If you are not satisfied with the service that you have received and can cite fair justification, we will issue a partial or full refund. Please contact us if you have any questions.