Reducing PDF page size to OCR

[Jnnnn]

Hi all,

I'm looking for help to with PDF documents made from JPEGs. When I try to OCR these I get the following error message:

Acrobat could not perform recognition (OCR) on this page because:

This page is larger than the maximum page size of 45 inches by 45 inches.

Is there a way to reduce the page size to solve this? I'm not interested in cropping to remove parts of each page so much as 'shrinking' them to below this threshold. I don't need, in fact don't want, the size to be that large, but do still need to read text, so want to reduce the dimensions rather than the quality per se.

If it helps: I'm starting with individual iPhone pictures from archives, and aiming to get relatively manageable, text recognized documents to work with. If there's a way to batch process the pictures before loading them to Acrobat then that would be ok (if Acrobat can't do this feature), but I have thousands of pictures so can't individually edit them.

Any help appreciated! I've looked through the forums but can't find an answer to this, but may be overlooking something.

[gary_sc · Accepted solution]

My guess is that the JPG images were saved at very low ppi. In other words, an image can be 3500 pixels wide but if the resolution was set at 72 ppi, the image would be 48.6 inches wide. But if the same image was set at 300 ppi, the image would be 11.7 inches wide.

If you have Photoshop, you can open the image, reset the resolution and you'll be good to go.

Via Bridge you can process all of the images and then process them through Acrobat.

Does this help?