How to Edit a Scanned PDF Document without Losing Quality

Last Updated on November 11, 2021 by Tina Clark

“I scanned several documents and save them as PDF files, but can I edit the scanned PDF, such as add some text or images?” There are several ways to create PDF documents, and scanning is one option. A scanner converts a file or an image into a PDF file in much the same manner as a photocopier makes copies. The PDF document is an accurate version of the source material and viewable on various operating systems. This article shares the best ways to edit your scanned PDF files on a desktop and online.

How to Edit a Scanned PDF

Part 1: How to Edit scanned PDF

If you want to edit a scanned PDF, you will need a powerful PDF editor, such as WidsMob PDFEditor. It is not only a PDF editor for editable PDF files but also available for scanned PDF documents. Its key features include:

  • Edit any scanned PDF documents on your desktop simply.
  • Offer editing tools related to text, image, pages, etc.
  • Adjust the order of pages, like insert new pages.
  • Protect the quality of the PDF document while editing.
  • Add password protection to your PDF documents.

In short, it is the easiest way to edit scanned PDF documents on a desktop.

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How to Edit a Scanned PDF File

Step 1: Import a scanned PDF

First of all, download the best-scanned PDF editor from the official website, double-click on the installer file, and follow the onscreen instructions to install it on your computer. Then launch it from your desktop. You have three ways to import the scanned PDF file. The easiest way is double-clicking on the PDF file if you have set up the program as the default PDF viewer. Click File -> Open and the document or drag and drop the PDF file into the interface.

Open Image File PDFEdit

Step 2: Edit the scanned PDF

View your PDF file and locate the page to edit, such as adding text or images. To change the scanned PDF into an editable file, use the OCR menu to recognize text and images in your scanned PDF.


Then click the Edit menu on the top ribbon to open the Edit toolbar. To add some text, select Add Text, click the blank area, and type your text. Next, set the text that appears on the right side, such as font, size, color, and more. If you want to add an image to the scanned PDF, choose Add Image to add the image on the page.

Preview Image PDFEdit

In addition, to add text and images, the PDF editor also provides Pages, Sign, Comments, Protect, and other tools to edit pages, add a signature, comments, and password to scanned PDF, and more.

Step 3: Export the final PDF document

After editing the scanned PDF, press the Ctrl + S buttons to save the changes. If you want to keep the original file, save the final PDF as a new document.

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Part 2: More other options to Edit scanned PDF with OCR

In addition to edit scanned PDF files on the desktop, there are some online tools available too. Web-based scanned PDF editors are handy but only suitable to edit small files.

Method 1: Edit Scanned PDF with Sejda

Sejda is a web-based utility. It can OCR recognize text from a scanned PDF file online. However, it will freeze if you upload a large PDF document.

Sejda PDF Desktop

Step 1: Open the web scanned PDF editor in your browser. Click the Upload PDF file and upload the scanned PDF to edit from your hard drive. Alternatively, you can upload a file from Google Drive or URL.

Step 2: After uploading the PDF, you can see the pages. Scroll down to the page you want to recognize OCR, select the language from the drop-down list based on your file, and click the Recognize text on this page button. Or click the Recognize text on the all pages button to analyze all pages.

Step 3: After recognition, you can download the text and edit the scanned PDF file.

Note: According to our research, it can take hours to scan a single page on the condition of your PDF. Plus, you may get nothing after scanning but scrambled code.

Method 2: Edit a Scanned PDF using Soda

Soda is a powerful scanned PDF editor online. The web version almost provides all tools that you can find in the desktop PDF software with the OCR tool.

Soda PDF

Step 1: Visit the online scanned PDF editor in any web browser, and sign in to your account. If you do not have one, create one on the website.

Step 2: Next, Go to File -> Open and upload a scanned PDF file from your computer, Google, Drive, OneDrive, Dropbox, etc. After loading the page, you can see the main interface.

Step 3: Go to the OCR tab on the top menu bar and select the Edit tool in the Modes section. Next, put your cursor to the text that you want to change and make it editable. Now, you can add a new word, change existing text, or delete unwanted texts.

Step 4: After editing, click the blank area. And the online editor will start to save the changes to your scanned PDF file.

Note: Unfortunately, you cannot download or save the edited PDF file if you only have a free account. But it is a portable way to test whether your scanned PDF can be edited or not. Or you can pay $3.49 per month to unlock the Download feature.


Based on the guide above, you should master three ways to edit scanned PDF files on your desktop or online. Web-based PDF editor apps are convenient, but they have some downsides, such as not handling large files. Therefore, we suggest you use a powerful desktop program, like WidsMob PDFEdit. It is not only easy to use but able to edit scanned PDF with OCR technology. We hope that our guide is helpful to you. And if you have other questions, please leave a message in the comment area below this article.

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