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Top 6 PDF Modifiers with AI to Modify Documents Like a Pro

Digital document sharing has evolved over the years. In the past, it was close to impossible to edit a PDF document. However, technology has now made it possible to modify PDF files and even convert them to other formats. Indeed, PDF file management has become a lot simpler without compromising on the benefits of the PDF format. If you work with PDF files, it is obvious that at some point you will need a PDF modifier app. The good news is that a number of PDF modifier free apps are available on the internet.

Top 6 PDF Modifiers Online and Offline Free

The internet is flooded with a large number of PDF modifier online apps. Most of these apps enable users to modify a PDF document from any browser. This eliminates the need to install the software. One can quickly get started by hitting up a URL in the browser. This article details 6 such PDF modifier online and offline apps along with the pros and cons of each.

1. UPDF - an AI-enhanced PDF Modifier on Windows and Mac

UPDF is an excellent PDF modifier that can help you achieve almost anything you wish with a PDF document. The app available for Windows, Mac, Mac, and Android requires an installation but makes sure that you are not limited to any PDF action.

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pdf modifier - updf



  • Its fast speed and beautiful user interface are indeed a delight for any PDF creator.
  • The PDF opening and reading speed are high and this improves your PDF reading experience vastly.
  • Users can easily convert PDF to Word, Excel, PPT, Text, HTML, XML, and Image formats (PNG, JPEG, BMP, TIFF, GIF).

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2. PDF24 Creator

This PDF modifier free online app has been around since 2006 and allows users to easily modify any PDF document.

With this fully online tool, you can create new PDFs, merge existing ones, compress a PDF, convert a PDF to other formats, extract specific pages to create a new document and even optimize a PDF for the web.

This web-based app is simple to use and is completely free. It is fast and light despite having a lot of features.

However, the major con of this app is that it can feel a bit clunky at times. This is quite obvious given that the app was created a decade ago.

pdf modifier - pdf24 creator

3. PDF Candy

PDF Candy is yet another PDF modifier online tool. This tool is extremely feature-rich and has 44 PDF modification options.

The browser-based editor tool offers various features including converting PDFs to a variety of formats, merging PDfs, compressing PDFs, extracting text and images, resizing pages, cropping PDFs, adding watermarks, and more in a list of buttons.

It has rich OCR capabilities and a great user interface. This tool also has a Windows-based application for users who prefer a locally installed offline PDF modifier.

The main disadvantage of this tool is that the free version of this app allows users only one task every hour. This is quite restrictive for heavy PDF users. 

pdf modifier online - pdf candy

4. Smallpdf

This is yet another popular PDF modifier-free app available on the internet. The Smallpdf website allows you to upload a PDF and make annotations and take notes. You can also modify the PDF file completely by adding pictures, text, and shapes to the PDF document. Once the necessary changes are done, you can compress the PDF file or export it as a Word, Excel, or PowerPoint file.

There are a few advantages of this app. This app is completely cloud-based and very simple to use. Moreover, the app offers a wide range of powerful PDF modifier tools. With this app, users can convert PDF files to a wide range of formats.

However, under the free capability of the app users can only process a maximum of two documents per day.

pdf modifier free - smallpdf

5. DocFly

This is a PDF modifier online app. With this fully online tool, you can easily convert PDF documents to other formats like PNG, JPEG, XLSX, PPTX, and DOCX. This tool also offers various other PDF editing and organization options. You can also add or remove a password to a PDF file straight from your browser.

The main advantage of this app is that it is fully cloud-based and enables fast document creation. It is also a secure app as it uses HTTPS protocol to upload files.

However, the app allows you to work with only 3 PDF documents each month.

pdf modifier online free - docfly

6. Xodo

Xodo is a PDF modifier online app. This app is also available as an installable on Android, iOS, and Windows. Xodo allows users to collaborate on a PDF and work simultaneously as a team. This app can help you fill out PDF forms, search through a PDF documents and even bookmark pages.

Users of this app heavily use this for creating annotations in a PDF document. The app is quite high quality and is slowly gaining a lot of popularity.

The main drawback of this app is its inability to actually edit a PDF document. Users can only highlight and annotate the PDF document.

pdf modifier free online - xodo


It is clear that PDF modifier-free online tools have several limitations. UPDF is a superior alternative. In fact, it is the fully functional PDF modifier. The app is gaining extremely positive reviews on the app stores it is available on and users love the overall experience with the application. Indeed UPDF simplifies all the PDF modifier, organization, and annotation needs. This makes it the preferred solution for carrying out all PDF tasks.

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