For editing PDF keywords when you convert image to searchable PDF document, you need to choose the application which can extract characters from the image and also able to convert these characters into PDF document, also able to set parameters for the target file.
The applications VeryPDF Image to PDF OCR Converter and Image to PDF OCR Converter Command Line can help you do such kinds of work well because they are OCR technology embedded image to PDF converters. Please download them from the homepage: https://www.verypdf.com/app/image-to-pdf-ocr-converter/index.html.
- Please see how to make the conversion by the command line application at first.
You need to unzip the ZIP file to some location of your computer. Then the application is runnable at once. You need to open MS-DOS interface for inputting the command line into it. Please click “Start”—“Run” to open “Run” dialog box. Then please input “cmd” in “Open” combo box and click “OK” button.
The command line to be inputted into MS-DOS interface is like the following one:
img2pdf [options] <-o output> <images>
To apply the command line template, you can see the following command line examples:
img2pdf –x 1 –k keywords –o F:\TEST\1.pdf F:\TEST\1.bmp
img2pdf –x 1 –k keywords –o F:\*.pdf F:\*.bmp
The first example is to show you how to convert one image to one searchable PDF and the second one is to convert images to searchable PDF documents in batches.
The options in the command line:
–x 1 is for creating searchable PDF document.
–k keywords is to set PDF keywords as “keywords”.
Setting done the command line in MS-DOS interface, please hit “Enter” button to run the conversion from image to searchable PDF document.
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Please see how to make the conversion by the GUI application then.
Install Image to PDF OCR Converter on your computer. Then you need to open the application by clicking the application icon on your desktop. In the opened application interface, please add image into it. You can directly drag the image you need and drop it into the application file list.
Then please click “Setting” button for opening “PDF E-Book Maker-OCR Version” dialog box. Click “PDF Info” tab which is shown in Figure 1 to input PDF keywords in “Keywords” edit box and click “OCR” tab which is shown in Figure 2 to check “Use OCR” option. Then click “OK” button.
Figure 1 Figure 2
When you see main interface of the application again, please click “Make PDF” button. A floating item will pop up and please choose “convert selected 1 file into pdf file” option. In popup “Save as” dialog box, please specify output location in “Save in” dropdown list and input the name in “File name” edit box. Click “Save” button to run the conversion from image to searchable PDF document at last.
If you want to read the user manual of Image to PDF OCR Converter, please click “Help (H)” button in menu bar of application interface and click “Help” in dropdown list. Then you will be able to read it online.
May I know the parameter –k referring to the open password or the owner password? Is there limitations about the keyword length?
Hi! Maybe you didn’t read this article carefully. It is keywords, not the password you mentioned. In addition, Image to PDF OCR Converter Command Line can not encrypt PDF document, but the GUI application Image to PDF OCR Converter can. For more details about encrypting PDF document, please read this article:
http://www.verypdf.com/wordpress/201204/convert-image-to-searchable-pdf-and-set-pdf-password-27144.html.