5 Best Paraphrasing Tools for PDF and MS Files in 2024 [Compared]

5 min readDec 21, 2023


We are going to introduce 5 AI paraphrasing tools based on their features and price. This article is devoted to giving you the ideal option that meets your needs most.

The 5 Best Paraphrasing Tools

Now, let’s dive deeper into these tools and pick the best one for you.

SwifDoo AI

SwifDoo AI is the best paraphrasing tool designed to rephrase sentences in PDFs. Although packed in SwifDoo PDF — a versatile PDF editor, SwifDoo AI is a standalone feature with an AI paraphraser to save you time reading long PDF text and help you quickly understand the main points. The software is powered by ChatGPT 4.0, which allows it to generate more natural sentences.

Meanwhile, thanks to the proofreading tool, you can check the grammar of the generated sentences to make the writing more professional. Having no character limit, the AI paraphrasing tool can regenerate the content as you asked while retaining the essentials. This is particularly efficient for students who use PDF textbooks.

In addition, SwifDoo AI is capable of summarizing the important ideas from a text and sorting out the structure to filter irrelevant information. Advanced PDF editing and annotating tools help you make edits to the PDF text while paraphrasing and summarizing.

Here, we’ve mapped out some highlights:

✨ Rephrase a sentence in PDF text in the tone you like;

✨ Analyze a full PDF file to extract the essentials;

✨ Translate PDFs to any language with accuracy;

✨ Windows-based application with a stable working experience.

Best for:

Office workers, students, teachers, and those who deal with PDF files often.

Free Paraphrasing Tool (Grammarly)

Grammarly also launched its artificial intelligence software — Free Paraphrasing Tool, to rephrase a sentence online for free. With proficient grammar-checking technology, the AI paraphrasing tool guarantees the right use of spelling, grammar, and punctuation in its generated text. As it deals with text, any copied sentence from Word, Excel, PowerPoint, and PDF can be rewritten and enhance readability.

The tool checks and corrects each sentence in a paragraph, making it the optimal assistant for writing formal articles, essays, and business files. The paraphrasing box can process a piece of text up to 500 characters and present recommended one in the way of comparison.

Here are some special picks for this best paraphrasing tool:

✨ Check its database to make sure the originality after rephrasing the sentences;

✨ Rewrite hard-to-read sentences to a reader-friendly bullet list;

✨ Accessible as an online site or an extension.

Best for:

Professional writers and bloggers who need to keep the text consistent, clean, and grammatically correct.


QuillBot must be one of the best paraphrasing tools online for free and is widely used in all works of life. It applies AI algorithms to paraphrase text, PDFs, and Word documents online in different languages. By changing the Synonyms, you can rewrite the text or file to the least or greatest extent. This helps you rephrase a sentence while avoiding plagiarism.

When it comes to applying the QuillBot paraphrasing tool to PDF or Word files, the layout or formatting of the files can be preserved and there is no need to make adjustments.

Here are several major features of the AI paraphrasing tool:

✨ Change the tone of the file to ensure the text can convey your attitude and intentions;

✨ Provide grammar and plagiarism checker;

Translate PDFs from English to Hindi and other languages.

Best for:

The paraphrasing tool for QuillBot is optimal for writers and teachers.

Paraphrasing Tool (Editpad)

Paraphrasing Tool is another online site using machine learning algorithms to rephrase sentences and files. It supports PDF, DOCX, and TXT formats so that you can upload a full document to the workspace without copying and pasting. Three paraphrasing styles are available for free and 17 languages are recognizable when paraphrasing input files. It lets you rewrite, summarize, and generate a new essay without hassle and free from plagiarism.

Take a look at the highlights of this paragraph rewriter:

✨ No character limit to rephrase text;

✨ Equipped AI PDF summarizer to summarize PDFs and Word documents.;

✨ Generate reports for your file.

Best for:

Students who are running on a tight budget to rewrite files with its student price.

Free AI Paraphrasing Tool (Ahrefs)

If you want to use a free rewriting tool that has no limit to its options for tone, then Free AI Paraphrasing Tool developed by Ahrefs is your top horse. The software is completely free with 14 tones to choose from. Plus, it has a customizing option, letting you enter the desired tone you want.

Having no task or character limit, it processes text copied from PDFs, Word documents, and other files swiftly and streamlines the art of writing. It presents natural and nicely worded sentences, which makes it captivating.

What can you do with this best paraphrasing tool:

✨ Edit the structure of the text;

✨ Intuitive user interface;

✨ Summarize, reword, and craft conclusions with other AI-powered tools.

Best for:

Bloggers, writers, or anyone who doesn’t mind adjusting the formatting when the task is completed.

Best Paraphrasing Tools Comparison

We’ve compiled the 5 paragraph rewriters to help you better choose the ideal one that meets your needs and budget:

A Quick Wrap-Up

After reading this article, hope you can find the best paraphrasing tool to boost your productivity. Considering the price of each tool, Free AI Paraphrasing Tool might be a good choice to handle pure text.

However, if you need to rephrase sentences in PDF files and make further edits, SwifDoo AI assists you in enhancing readability and producing exceptional content.

Originally published at https://www.swifdoo.com on December 21, 2023.




I’m fascinated by the influence of evolving technologies, computer software/hardware as well as social behavioral norms. https://www.swifdoo.com/