Google Vision OCR API parse images differently in Linux and Windows 10

[unni mana]

Hi All,

I am calling a Google Vision OCR Java API to parse bills from pdf files. It is working fine when I make requests from my Windows 10 laptop. But when the same code is deployed in Linux environment and tries to parse the same PDF files, it is not parsing properly. Some of the parsed text is missing.

Any idea why is this happening?

Thanks

Unni

[Krishnanunni K]

Are you converting the PDF to images and doing OCR ?

[unni mana]

Yes I am using Apache pdf box to convert the pdf into images.

[Krishnanunni K]

Most probably the problem will be, that you might be missing the fonts required in the Linux environment. See , if the images looks ok

[unni mana]

The images are looking good. How can we know what fonts to be installed?

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[unni mana]

I am getting the following errors in Windows and Linux environments:

Rendering of type3 fonts isn't supported in PDFBox 1.8.x. It will be available in the 2.0 version!.

Then I upgraded the PDFBox to 2.0.25 version, but I am still getting the above message in both environments.

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