OCR PDFs with UPDF on Windows

The OCR feature by UPDF allows you to convert the scanned text of a PDF document into searchable and editable content. Text on images can also be edited after using this feature which makes the document interactive for users. Click the below button and follow the below text guide or video guide to OCR PDFs.

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1. How to Download and Install OCR

As you open the respective document, navigate to the "Recognize Text Using OCR" button on the right.

choose OCR option

If you are using this feature for the first time, you will have to download it as a plugin across UPDF. Continue with the process by clicking on the "Download" button across the pop-up window.

download OCR plugin

You will be automatically redirected to the next window, where the progress of the installation of the feature will be displayed. Let the feature install successfully across your Windows device before using it.

OCR plugin installed successfully

2. How to OCR PDFs

Once installed, close the window and navigate to the same button for accessing the OCR tool across UPDF. As it opens up, it will provide you with two different options of Document Type, which include "Searchable PDF" and "Image-only PDF."

2.1 Document Type: Searchable PDF

If you go for "Searchable PDF," it will convert your scanned PDF documents into editable and searchable documents.

Layout:

To set this up, you must first decide on a proper "Layout" with the options available in the drop-down menu.

choose a layout option

You will get three different options in setting up the layout of the process:

before and after OCR comparison
before and after OCR comparison
before and after OCR comparison

Click on the "Gear" icon to access more Layout Settings that you can define for your file. Here you can specify if you wish to "Keep pictures," while determining the quality between "Low," "Balanced," or "High" to save a file with a smaller size than the original with commendable image and picture quality.

layout settings

Document Language, Image Resolution, and Page Range:

Define a proper "Document Language" with the option of 38 different languages across the drop-down menu. This provides UPDF with a better ground for recognizing text accurately across the document.

select document language

You can also specify proper resolution settings for the images with the "Image Resolution" option. Work over the "Page Range" and click "Perform OCR" to execute OCR across the file with the defined settings.

image resolution

2.2. Document Type: Image-only PDF

If you proceed with "Image-only PDF," it converts your searchable and editable documents into an image-based PDF document which is neither searchable nor editable.

image-only PDF
compress images using MRC

It is free to test the OCR feature in the free trial version. But you can only experience and cannot save, copy, and edit the OCRed PDF. To have all the features you need, you can upgrade to pro version.

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