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Old 03-24-2011, 11:06 PM   #1
excalibra
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scanned pdf

I have an old book scanned in pdf format as 2 book pages in a page. As the scan quality is not good, I can't use OCR to change the pdf into a flowable/readable text format and convert to mobi. Therefore, I used briss to cut the double pages into one page in pdf format,but the pages look small in my kindle 3's 6 inch screen. I converted pdf to images as one jpeg file for each page.What is the best way to view these in kindle 3, how can I change the jpeg files into a size to be displayed best in 6 inch screen? And another question, should I put the pictures as jpeg to kindle or is it better to change them again to pdf or some other format after resizing?
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Old 03-25-2011, 03:19 AM   #2
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Have you tried cutting the pdf into four or even six pieces?
-----------------
| A1 | B1 |
|--------|-------|
| A2 | B2 |
|--------|-------|
| A3 | B3 |
-----------------

(pardon my ascii...)

laborg
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Old 03-25-2011, 03:18 PM   #3
excalibra
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Quote:
Originally Posted by laborg View Post
Have you tried cutting the pdf into four or even six pieces?
-----------------
| A1 | B1 |
|--------|-------|
| A2 | B2 |
|--------|-------|
| A3 | B3 |
-----------------

(pardon my ascii...)

laborg
thanks but how can I do that, which program? What should be the height of each piece?
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Old 03-25-2011, 08:28 PM   #4
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you are using BRISS and it can do that. View the whole page and divide it up.
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Old 03-26-2011, 01:19 AM   #5
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I tried Briss to cut the pages in half,but the resulting pages are not satisfactory as there are a lot photos in the book. Maybe, dealing with jpeg files of the pages might give a better result. Which width and height should I resize the jpeg files to fit on kindle 6 inch screen?
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Old 04-08-2011, 04:41 AM   #6
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First you could extract the images from the PDF and then use Scan Tailor to split them, straighten them, etc.

Resizing is optional. I think the Kindle should be able to fit larger pictures. If it doesn't, there has to be a setting somewhere. Resize only if the Kindle struggles with flipping larger res pictures (600 dpi is the default in Scan Tailor). If the page flip is slow, find out what the maximum Kindle screen resolution is and you can use IrfanView (or similar) to do a batch resize to fit the screen exactly.

JPG at 90% quality will probably do the job and not put much stress on the CPU (or battery life?). But what do I know, I don't own a Kindle. You'll have to experiment.


PS: Next time please be more descriptive with the post title...
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