In some situations, you may want others to view only a specific section of your PDF while keeping the rest blurred. This could be to protect sensitive information or to encourage viewers to contact you for access to the hidden content. Whatever your reason, this guide will walk you through effective methods to blur parts of a PDF file.
Part 1. How to Blur Text in PDF? (Step by Step)
If you search around, you cannot find many tools that can support blurring the PDF files. But with UPDF, you can do that. With it, you are allowed to select which pages you want to blur. Just download UPDF to your computer and follow the guide below to blur your PDF now.
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Step 1. Open the PDF with UPDF, then click on the "Arrow Down" icon behind the "Save" button. Select "Image PDF".

Step 2. In the pop-up window, you can select the "Blur" icon, drag the slider to set the blur rate you need. Choose page range. For instance, here, I only want to blur page 2. So I enter the 2 to 2 in the page range section. Click on the "Preview" icon to check the effect.

Step 3. Select the location to save the blurred PDF. It will automatically opened in UPDF. And you can find the PDF is blurred like this.

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Part 2. Other Methods to Protect Your Information in PDF
Except to blur PDFs, you can use other methods to protect your information. The most effective one is redaction. Compared with blurring, redaction is more flexible to use as it allows you to redact some parts of content, redact pages, search to redact, and sanitize the document. And with UPDF, you can have all these features.
Follow the guide below to see how to do it.
Method 1: Redact Some Contents
You can select to redact some content in the PDF.
Step 1: Access the Redaction Tool on UPDF
First and foremost, you have to download UPDF on your Windows or Mac device to make use of its blur PDF feature. Once the downloading is complete, upload your PDF on the UPDF interface to kick-start the process.
Open your PDF file in UPDF. Click the"Tools" > "Redact" icon to enter the redaction mode. Click on the "Redact" on the top menu. Draw to select the text to redact. You can choose the color for the redacted area. Then, click on the "Apply" to redact it.

Method 2. Redact Pages
You can also redact pages with UPDF. Click on the "Redact Pages" icon. Select the page range, choose the color, and click on the "Redact" to check the effect. Then, click on the "Apply" and save the changes.

Method 3. Search to Redact
If you want to redact any specific word or phrase everywhere in your PDF, click on the "Search" > "Find Text & Redact" tab to do so. Afterward, write the text you want to hide from the whole document, and a list will appear containing all lines with this specific word. Now, select the text and press the "Redact" button to complete the operation.

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FAQs About Blurring PDFs
Q1. How do I blur part of a PDF image?
To blur part of a PDF image, you can use UPDF's redaction feature or draw a shape to hide a section of the image using the annotation feature.
Q2. Can I blur a PDF using Adobe Acrobat
No. It does not have the blur feature. But you can use its redaction feature to remove the sensitive information with paid license. To blur the PDF, use UPDF.
Conclusion
In conclusion, blurring text in a PDF is simple and effective with UPDF. Beyond text blurring, UPDF offers a comprehensive range of tools to help you edit, annotate, convert, organize, and protect your PDF files. With its powerful features, UPDF is a versatile solution for all your PDF needs, making it an invaluable tool for improving document efficiency and security. Try UPDF today to discover how it can enhance your PDF workflow!
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