how to remove this display problem

I really need to use the Acrobat Pro OCR during scan, because Acrobat Pro makes automatically the rotate and prevent skewed pages. 

About the PDF file from scan created with Acrobat Pro, and about this PDF exported from InDesign to desktop, Acrobat Pro can see it without display problem. So I don't understand why InDesign cannot (display problems).

About scanner device resolution, if I go in Acrobat Pro scan settings I can see that I have a maximum of 300 ppp :

For the created PDF that I use inside InDesign, I was on 300 ppp.

As you can see, I was also with OCR checked.

According to what you have said, I have made a test by unchecking OCR and making a full scan (4 pages).

The result : in Indesign, the problem has gone, but some pages are not rotated and I have pages with some skewed pages, so I am obliged to rotate and change the angle, but by doing that, the problems appears again ...

Hi @pierret18811376 , what hardware are you using to make the scan you are bringing into Acrobat? I assume the reason for using Acrobat is to OCR the text, but you don’t seem to be doing that? Most scanner software lets you choose the output image format—TIFF, JPEG, PDF, etc—if you don’t need to OCR it might be better to scan to an image format. There are also scripts that will automate image placement.

True, you can't get resolution info for the PDF directly in InDesign, but it would be good to know what the scanner resolution was, and the scaling factor. My guess is the scan settings are for RGB at not more than 300 PPI, and you'd probably get a better result scanning as grayscale or bitmap at 1200 (if the scanner can do it  -- no point in going beyond the optical resolution maximum).

I'm inclined to think this is more likely page skew than image rotation -- the rotation is slight, the text seems to be running up hill to match the bottom of the page, and the vertical edge seems to be straight, and there is no way I can find to set rotation before the imageis placed, so it seems hard to believe that's what happened.

And as Bob says, cropping off the page edge would solve the problem.

The pages I want to scan is 4 pages from this book. So I have made a full scan to PDF (4 pages) in max quality, by using Acrobat Pro.

For the full scan, some pages are rotated, and some are not rotated. But Acrobat Pro rotate the pages automatically.

The result in Acrobat Pro is very good (no display problem).

The result in InDesign (by importing all pages with the script "Place multiPages PDF") is showing display problem on all  pages (pages rotated and pages not rotated).

Hi Pierre,

I do not think there is a solution that would be perfect.

The placed PDF page is rotated. I also have to live sometimes with display effects like that when I rotate placed images.

FWIW: One could rotate the image pixels inside the PDF, but that would perhaps cause real quality issues.

Regards,
Uwe Laubender

( ACP )

As jmlevy suggestes above this looks to be caused by image rotation, or perhaps by a skewed page on the scanner bed (or even a hardware problem in the scanner).  This would be accentuated by a low effective resolution. What is the effective resolution of the image as it appears in InDesign?

Does it show in an exported PDF of the page from InDesign?

Does it show in a print?

Je pense que c'est lié au fait que l'image (ou le bloc) a subi une rotation. Et sur la capture, on voit bien qu'il s'agit d'une prévisu standard. Ou alors l'image a été scannée avec un certain angle, ou à une résolution insuffisante.

I am not sure if this has something to do with the script. Can you try placing the pdf manually like using Cmd+D shortcut on the MAC and see if the issue still persists.

-Manan