How to Edit Secured PDF [Easy Guide]

How to edit secured PDF

Secured PDFs are PDF documents that have been encrypted with a password or other security measures to prevent unauthorized access, printing, or editing. They are commonly used in various professions and businesses to protect sensitive information and maintain confidentiality. 

However, there are times when it becomes necessary to edit the content of a secured PDF, such as when making corrections or adding information. This can be a challenge, especially if the password is unknown or if the security measures are particularly strong. For this reason, it is essential to have access to reliable tools and methods for editing secured PDFs.

This article aims to provide a simple and easy-to-follow guide for editing secured PDFs, as well as a list of the top 10 PDF reader tools that can help users achieve this goal. Whether you are a student, a professional, or a business owner, having the ability to edit secured PDFs can be a valuable digital asset in your daily routine. With the right tools and techniques, you can save time and effort while ensuring your documents remain secure and protected from unauthorized access. So, whether you need to edit a contract template, proposal, or report, this guide will provide you the information you need to complete the job quickly and efficiently.

Understanding PDF Security

PDF security is essential to document management, particularly for sensitive or confidential information. Password protection is a standard security measure that restricts access to PDF documents. Two types of passwords can be used to secure PDFs: a document open password, which is required to open the document, and a permissions password, which controls what can be done with the PDF document after it is opened. Permission restrictions can include limitations on editing, copying, printing, and other actions. 

As a result, it is essential to understand the legal and ethical considerations when editing secured PDFs, mainly when dealing with sensitive information. Unauthorized editing or sharing of secured PDFs can lead to legal and ethical violations and may result in severe consequences. As such, it is crucial to follow proper protocols and seek permission before modifying a secured PDF. By understanding the various aspects of PDF security and adhering to ethical and legal standards, individuals and organizations can ensure the confidentiality and integrity of their documents.

How to Edit Secured PDFs: Step-by-Step Guide

Editing a secured PDF document may seem daunting, but it can be accomplished with the right tools and techniques. The following step-by-step guide outlines the process of editing secured PDFs. 

First, obtaining the permissions password is essential, allowing the user to access the document’s content and make necessary modifications. Once the password is obtained, the next step is to unlock the PDF using the permissions password. With the document opened, PDF content can be edited using various PDF editing tools. After making the desired changes, the final step is to save the revised PDF with or without security measures. For future editing convenience, the old PDF can have its password removed. Simultaneously, the new PDF document can be saved without password protection if security is no longer required.

Alternatively, if the document still requires security, it can be protected with new password protection or the same password used to unlock it. Following these steps will enable users to edit secured PDFs and ensure their documents remain secure and protected from unauthorized access.

Top 10 PDF Reader Tools for Editing Secured PDFs

  1. Kdan PDF Reader
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Kdan PDF Reader is a versatile PDF editor that offers a smooth user experience. It is available on various platforms like iOS, Android, Mac, and Windows. The tool provides annotation, text editing, page editing, form filling, and e-signature capabilities, making it easy to modify and sign PDF documents on the go. In addition, Kdan PDF Reader’s user-friendly interface makes it a perfect choice for individuals and businesses looking for an all-in-one PDF editor.

In addition to its annotation, form filling, and e-signature capabilities, Kdan PDF Reader also has many other valuable features. These include merging multiple PDF files, splitting PDF pages, and adding watermarks or stamps to documents. PDF Reader provides various viewing options, such as auto-scroll and text reflow, making it easy to read documents on the go,In addition, it allows users to customize the reading experience by changing font sizes, colors, and dark mode. With its versatile editing capabilities and compatibility with multiple platforms, Kdan PDF Reader is a valuable tool for anyone looking to edit and manage PDF documents.

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  1. Adobe Acrobat Pro DC
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Adobe Acrobat Pro DC is an industry-standard PDF editor with advanced security features. The tool is compatible with various platforms, including Windows, macOS, iOS, and Android, making it accessible to a wide range of users. In addition, Adobe Acrobat Pro DC also offers cloud storage integration, electronic signatures, and collaboration tools, allowing users to edit and share PDF documents seamlessly. With its powerful editing capabilities and reliable security features, Adobe Acrobat Pro DC is an excellent choice for individuals and businesses looking to manage their PDF documents effectively.

  1. PDFelement
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PDFelement is a PDF editor with a user-friendly interface and robust editing capabilities. The tool is available on various platforms, such as Windows, macOS, iOS, and Android, making it easy to access and use across different devices. PDFelement supports addition,  batch processing, and document conversion, enabling users to quickly convert multiple files into PDF format. With its intuitive interface and powerful editing capabilities, PDFelement is an excellent choice for individuals and businesses seeking a flexible PDF editor to streamline their document management processes.

  1. Foxit PhantomPDF
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Foxit PhantomPDF is a comprehensive PDF editor that prioritizes security and collaboration features. The tool is compatible with various platforms such as Windows, macOS, iOS, and Android, making it widely accessible across different devices. In addition, Foxit PhantomPDF includes ConnectedPDF technology, which enables document tracking and control, ensuring that documents are secure throughout the editing and collaboration process. With its focus on security and collaboration, Foxit PhantomPDF is an excellent choice for individuals and businesses prioritizing safe and efficient document management.

  1. Nitro Pro
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Nitro Pro is a feature-rich PDF editor designed to meet the needs of businesses. The tool is compatible with Windows operating systems, making it an excellent choice for organizations that rely on Windows-based devices. In addition, Nitro Pro offers a range of features, including electronic signatures, form creation, and cloud storage integration. 

With its powerful capabilities, Nitro Pro streamlines document management processes and helps businesses save time and increase efficiency. Nitro Pro is an excellent choice for companies seeking a comprehensive PDF editor that can handle complex workflows and support collaboration.

  1. ABBYY FineReader
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ABBYY FineReader is a powerful PDF editor equipped with advanced Optical Character Recognition (OCR) technology. This feature allows users to convert scanned documents into editable text, making modifying and sharing information easier. The tool is available on both Windows and macOS devices, enabling users to perform a wide range of editing tasks, including document conversion, editing, and comparison. With its powerful capabilities, ABBYY FineReader is an excellent choice for users who need to work with scanned documents and want a comprehensive PDF editor that can handle complex workflows.

  1. Soda PDF
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Soda PDF is a highly customizable PDF editor with a modular approach. The software can be used on Windows, macOS, iOS, and Android platforms, offering users various options for creating and editing PDF files. It also has cloud storage integration, batch processing, and form creation tools. With its modular approach, users can choose the features they need and add them to the program. This makes it an ideal choice for individuals and businesses requiring flexibility and customization in PDF editing software.

  1. Sejda PDF Editor
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Sejda PDF Editor is a web-based PDF editor with desktop applications on Windows, macOS, and Linux systems. It provides basic editing features such as merging and splitting PDFs, form-filling, and password protection. 

Sejda PDF Editor is easy to use and allows users to edit PDFs from any device with an internet connection. It also offers a range of valuable features, including the ability to rotate and crop pages, add watermarks and signatures, and convert PDFs to other formats. Additionally, Sejda PDF Editor supports batch processing, enabling users to apply edits to multiple files at once.

  1. PDF-XChange Editor
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PDF-XChange Editor is a lightweight and efficient PDF editor focusing on speed. It is compatible with Windows operating systems and offers various features such as OCR capabilities, annotations, and customizable toolbars. The software is designed to provide users with a smooth and intuitive editing experience. 

PDF-XChange Editor is ideal for users who require a fast and reliable PDF editor that can handle complex tasks efficiently. With its user-friendly interface and advanced features, PDF-XChange Editor is an excellent choice for personal and professional use.

  1. Smallpdf
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Smallpdf is a user-friendly, web-based PDF editor for quick and simple tasks. It is compatible with all platforms through web browsers and offers basic editing capabilities, such as text and image editing, document conversion, and e-signature options. Smallpdf is particularly useful for individuals who need to quickly make small changes to a PDF file without installing any software. 

It also offers a paid subscription service with more advanced features like batch processing, password protection, and unlimited storage. Overall, Smallpdf is an excellent choice for individuals who need a straightforward PDF editor.

Tips for Choosing the Right PDF Reader Tool

  1. Can I edit a secured PDF file?

It depends on the security settings of the PDF file. For example, if the PDF file has been password-protected, you will need to enter the password to unlock it before you can make any changes. However, if the PDF file has been locked down with permissions that prevent editing, you will need to either request permission from the owner or use a PDF editor tool to bypass these restrictions.

  1. Are there any free PDF Reader tools for editing secured PDFs?

Yes, there are several free PDF tools available for editing secured PDFs, such as Foxit Reader, Sumatra PDF, and PDF-XChange Editor. However, the features available in these free tools may be limited compared to their paid counterparts.

  1. What features should I look for in a PDF Reader tool for editing secured PDFs?

When selecting a PDF Reader tool for editing secured PDFs, it’s important to consider the features that are essential for your needs. Some key features to look for include password protection, redaction tools, OCR capabilities, digital signature support, document conversion, and cloud storage integration.

  1. Is it possible to edit a PDF file on a mobile device?

Yes, most tools in PDF Reader are available for mobile devices, including iOS and Android. However, the editing features on mobile devices may be more limited compared to desktop versions.

  1. Can multiple users collaborate on a single PDF file using a PDF Reader tool?

Yes, many PDF Reader tools offer collaboration features such as document sharing, comments, and markup tools that allow multiple users to work on the same PDF file simultaneously. However, collaboration features may vary depending on the tool and subscription plan.


In conclusion, in an era where remote work is on the rise and everyone is seeking to improve mobile security and privacy, the ability to edit secured PDFs is a crucial feature for both individuals and businesses. It streamlines workflows and increases productivity, saving time and effort. Let’s say you’re a traveler hiking on your tour du Mont Blanc, and suddenly require to review business files. As the document has been uploaded to cloud storage, you can review and confirm it on your mobile device right away! 

The top 10 PDF Reader tools listed above offer a variety of features, from basic editing to advanced security capabilities. We encourage you to explore these tools and make an informed decision based on your requirements. Kdan PDF Reader, with its versatile editing features and smooth user experience, is an excellent choice for those looking for an all-in-one PDF solution. To learn more about Kdan PDF Reader, click the link and download it today!

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