Debenu Quick PDF Library - PDF SDK Community Forum : Horizontal Thumbnails Look like Portrait

Horizontal Thumbnails Look like Portrait : Serious! This solved my problem...

Sun, 11 Nov 2012 23:06:03 +0000

Author: CrazyTIm
Subject: 2449
Posted: 11 Nov 12 at 11:06PM

Serious! This solved my problem :D, thanks Andrew!

Horizontal Thumbnails Look like Portrait : Jason,The QP.NormalizePage(0)...

Fri, 09 Nov 2012 10:58:06 +0000

Author: AndrewC
Subject: 2449
Posted: 09 Nov 12 at 10:58AM

Jason,

The QP.NormalizePage(0) will reset the page rotation to 0 degrees.

QP.LoadFromFile ("rotated.pdf", "");

for i = 1 to QP.PageCount() do

begin

QP.SelectPage(i);

QP.NormalizePage(0);

end;

QP.SaveToFile("0degrees.pdf");

Andrew.

Horizontal Thumbnails Look like Portrait : Hi Jason!If you need a new functionality...

Fri, 09 Nov 2012 07:00:38 +0000

Author: Ingo
Subject: 2449
Posted: 09 Nov 12 at 7:00AM

Hi Jason!

If you need a new functionality you shouldn't ask here
in the user-user-forum. Take the official support-pages.
There is a place to post new wanted requirements:
http://www.quickpdflibrary.com/support/support-query.php

Cheers, Ingo

Horizontal Thumbnails Look like Portrait : You know what? A functionSetRenderRotation...

Fri, 09 Nov 2012 01:47:08 +0000

Author: CrazyTIm
Subject: 2449
Posted: 09 Nov 12 at 1:47AM

You know what? A function SetRenderRotation would be what I'm looking for! ...

Horizontal Thumbnails Look like Portrait : I have a follow-up question to...

Fri, 09 Nov 2012 01:45:29 +0000

Author: CrazyTIm
Subject: 2449
Posted: 09 Nov 12 at 1:45AM

I have a follow-up question to my problem: To get around this I need to reset the rotation of all pages to 0, and for every page that *was* rotated I need to rebuild a new page in Horizontal layout and draw the content rotated in place. Is this possible using the QuickPDF library? the RenderPageToVariant function seems to render it local to the original coordinates and there is no way to rotate the content. Is this correct?

This all seems to be a very specific problem with the iPad so I'm not too concerned if this can't be done. I'll just have to wait for an IOS update that fixes it :).

Thanks, Jason

Horizontal Thumbnails Look like Portrait : I think I have figured it out....

Fri, 09 Nov 2012 01:36:48 +0000

Author: CrazyTIm
Subject: 2449
Posted: 09 Nov 12 at 1:36AM

I think I have figured it out. The issue I am having seems to be a problem with how the iPad renders page thumbnails, that is why they look OK on my PC in Acrobat but not on the iPad.

I have tested for an hour or so, and it seems the native PDF viewer in the iPad renders thumbnails differently than Acrobat *for pages that have been rotated*. More specifically, if a portrait page has been rotated to landscape, the thumbnail on the iPad stays in portrait, but the image on the thumbnail gets white bars at the top and bottom.

SO it looks like the iPad uses the dimensions of the PDF page to draw the shape of the thumbnail, and then draws the rotated page inside of that, which is a bit confusing to say the least!

Horizontal Thumbnails Look like Portrait : This is a stack overflow questionsimilarto...

Thu, 08 Nov 2012 07:51:08 +0000

Font
font-family
font-size
font-style
font-variant
font-weight
letter-spacing
line-height
text-decoration
text-align
text-indent
text-transform
white-space
word-spacing
color
Background
bg-attachment
bg-color
bg-image
bg-position
bg-repeat
Box
width
height
border-top
border-right
border-bottom
border-left
margin
padding
max-height
min-height
max-width
min-width
outline-color
outline-style
outline-width
Positioning
position
top
bottom
right
left
float
display
clear
z-index
List
list-style-image
list-style-type
list-style-position
Table
vertical-align
border-collapse
border-spacing
caption-side
empty-cells
table-layout
Effects
text-shadow
-webkit-box-shadow
border-radius
Other
overflow
cursor
visibility

Author: CrazyTIm
Subject: 2449
Posted: 08 Nov 12 at 7:51AM

This is a stack overflow question similar to the problem I am facing, however it is with a different library:

http://stackoverflow.com/questions/11736590/creating-a-thumbnail-from-pdf-using-c-sharp-orientation-is-important

Horizontal Thumbnails Look like Portrait : Hi all,elementFontfont-familyf...

Thu, 08 Nov 2012 07:47:04 +0000

Font
font-family
font-size
font-style
font-variant
font-weight
letter-spacing
line-height
text-decoration
text-align
text-indent
text-transform
white-space
word-spacing
color
Background
bg-attachment
bg-color
bg-image
bg-position
bg-repeat
Box
width
height
border-top
border-right
border-bottom
border-left
margin
padding
max-height
min-height
max-width
min-width
outline-color
outline-style
outline-width
Positioning
position
top
bottom
right
left
float
display
clear
z-index
List
list-style-image
list-style-type
list-style-position
Table
vertical-align
border-collapse
border-spacing
caption-side
empty-cells
table-layout
Effects
text-shadow
-webkit-box-shadow
border-radius
Other
overflow
cursor
visibility

Author: CrazyTIm
Subject: 2449
Posted: 08 Nov 12 at 7:47AM

Hi all,

I have a PDF which I am resizing all the pages to A4 while preserving the orientation. After I do this I have noticed the thumbnails are all Portrait, but only on the iPad. In Acrobat on my PC they show as normal.

I have tried re-rendering the thumbnails using the code below (VB.NET), but strangely this doesn't work, which makes me think it is a property of the page I have missed when resizing it, not the thumbnail itself:

' update page thumbnails
For i = 1 To Q.PageCount
    Dim ImageContent = Q.RenderPageToVariant(96, i, 0)
    Dim ImageID As Integer = Q.AddImageFromVariant(ImageContent, 1)
    Q.SelectImage(ImageID)
    Q.SelectPage(i)
    Q.SetPageThumbnail()
Next

Does something stand out that would fix this, such as adjusting dimensions of the Media Box, Crop Box, Bleed Box, Trim Box or Art Box? I'm not sure what the difference between these are.

Thanks, Jason.