PDF Background Transparency and Color

I have several PDF pages that are vector black line-drawings that have been placed into a document as a gallery, which works great.
However, when you click on the PDF to view it in isolation, the background turns black and the drawing is hardly visable.
I am able to convert the PDF's to a raster format, but would like to know if there is a way to change the background color when viewing an image in isolation.
Thank you in advance,

I just realized that converting the PDF's to a raster format is not a preferable option, as the sepia background of the picture frame fill is preferred.
Can the background of the image isolation mode be changed (to match the sepia background of the picture frame fill)?

Similar Messages

Transparency and color blend space: fail!

Hi there. I keep trying to export my pdf, to no avail.
I get an error that pops up that says there is an error with my transparency and color blend space.
HOWEVER, all my images are set to CMYK (it says so in the links panel) and my transparency blend space is also set to CMYK. I have no errors in my preflight panel. When I ignore the message and continue to export, the image looks completely different and not the way I want it to show up.
Please let me know how I can fix this error! Thanks so much!

Document CMYK is the assigned profile in Edit>Assign Profiles.... Working CMYK is Color Settings...>Working Spaces>CMYK. If there's no profile assigned, document and working are the same. So in this case Document CMYK is Coated FOGRA27 and Working CMYK is US Web Coated SWOP—the assigned FOGRA is color managing the document's native CMYK colors not the working US SWOP

Problem with adjusting both transparency and color of an object

I am writing a program where when an object is picked, both it's transparency and color will be altered (the object will become opaque, and its color will turn to a predefined "selected" color), while the previously selected object will return to its original transparency and color. I am able to get this to work, except that objects that were picked two or more picks ago will remain in the selected color, albeit in their original transparency. This problem only seems to occur when transparency is factored in. The picking/color & transparency altering code is as follows.
public class PickingListener extends MouseAdapter {
     private PickCanvas pickCanvas;
     private TextDisplay overlay;
     private Primitive p;
     private Primitive lastP;
     private ColoringAttributes origColor;
     private TransparencyAttributes origTransparency;
     public PickingListener(PickCanvas pickCanvasArg, TextDisplay overlayArg) {
          pickCanvas = pickCanvasArg;
          overlay = overlayArg;
     public void mouseClicked(MouseEvent e) {
          pickCanvas.setShapeLocation(e);
          PickResult result = pickCanvas.pickClosest();
          if (result == null) {
               System.out.println("Nothing picked");
          } else {
               p = (Primitive) result.getNode(PickResult.PRIMITIVE);
               if (p != null) {
                    setSelectedColor();
                    overlay.setPickedBarInfo((BarInformation) p.getUserData());
               else
                    System.out.println("null");
     private void setSelectedColor() {
          ColoringAttributes barCA = new ColoringAttributes();
          TransparencyAttributes barTransp = new TransparencyAttributes(TransparencyAttributes.NICEST, 0.0f);
          barCA.setColor(ColorConstants.SELECTED);
          if (lastP != null) {
               lastP.getAppearance().setColoringAttributes(origColor);
               lastP.getAppearance().setTransparencyAttributes(origTransparency);
          origColor = p.getAppearance().getColoringAttributes();
          origTransparency = p.getAppearance().getTransparencyAttributes();
          p.getAppearance().setColoringAttributes(barCA);
          p.getAppearance().setTransparencyAttributes(barTransp);
          lastP = p;
}Capabilities to alter the primitive's color and transparency are all set.
     barAppearance.setCapability(Appearance.ALLOW_COLORING_ATTRIBUTES_READ);
          barAppearance.setCapability(Appearance.ALLOW_COLORING_ATTRIBUTES_WRITE);
          barAppearance.setCapability(Appearance.ALLOW_TRANSPARENCY_ATTRIBUTES_WRITE);          barAppearance.setCapability(Appearance.ALLOW_TRANSPARENCY_ATTRIBUTES_READ);
ColoringAttributes barCA = new ColoringAttributes();
barCA.setCapability(ColoringAttributes.ALLOW_COLOR_WRITE);
barCA.setCapability(ColoringAttributes.ALLOW_COLOR_READ);)
Any insight as to why this would occur would be greatly appreciated.
-Adrian Benton

A Behavior is the preferred way to make changes in a scenegraph. Here is an example from a previous post that changes the appearance of a shape when it collides with another shape.
The javadoc for javax.media.j3d.Behavior appears to refer to the issue you have.
Transparencies are confusing, different display adapters deal with them differently. Suggest you search the forum at
http://forums.java.net/jive/forum.jspa?forumID=70
for more detailed information.
regards
class CollisionDetector extends Behavior {
private static final Color3f highlightColor = new Color3f(0.0f, 1.0f, 0.0f);
private static final ColoringAttributes highlight = new ColoringAttributes(
      highlightColor, ColoringAttributes.SHADE_GOURAUD);
private boolean inCollision = false;
private Shape3D shape;
private ColoringAttributes shapeColoring;
private Appearance shapeAppearance;
private WakeupOnCollisionEntry wEnter;
private WakeupOnCollisionExit wExit;
public CollisionDetector(Shape3D s) {
    shape = s;
    shapeAppearance = shape.getAppearance();
    shapeColoring = shapeAppearance.getColoringAttributes();
    inCollision = false;
public void initialize() {
    wEnter = new WakeupOnCollisionEntry(shape);
    wExit = new WakeupOnCollisionExit(shape);
    wakeupOn(wEnter);
public void processStimulus(Enumeration criteria) {
    inCollision = !inCollision;
    if (inCollision) {
      shapeAppearance.setColoringAttributes(highlight);
      wakeupOn(wExit);
    } else {
      shapeAppearance.setColoringAttributes(shapeColoring);
      wakeupOn(wEnter);
}

Background images and color

What instance would background image and background colors
not show in a browser? (All other images are fine)

Cosmic rays.
Murray --- ICQ 71997575
Adobe Community Expert
(If you *MUST* email me, don't LAUGH when you do so!)
==================
http://www.projectseven.com/go
- DW FAQs, Tutorials & Resources
http://www.dwfaq.com - DW FAQs,
Tutorials & Resources
==================
"Murray *ACE*" <[email protected]> wrote
in message
news:gbu845$7gd$[email protected]..
>A color specification without the required octothorpe
>
> --
> Murray --- ICQ 71997575
> Adobe Community Expert
> (If you *MUST* email me, don't LAUGH when you do so!)
> ==================
>
http://www.projectseven.com/go
- DW FAQs, Tutorials & Resources
>
http://www.dwfaq.com - DW FAQs,
Tutorials & Resources
> ==================
>
>
> "TC2112" <[email protected]> wrote in message
> news:gbu7sb$782$[email protected]..
>> Hello,
>>
>> Some examples would be incorrect CSS, an incorrect
link to a CSS
>> stylesheet, another element with a background color
"on top" of the
>> background blocking it, an incorrect path to the
image....
>>
>> The answer is in the code.
>> Do you have a link you could post?
>>
>> Take care,
>> Tim
>>
>> "TaraLeigh" <[email protected]>
wrote in message
>> news:gbu7bj$6hs$[email protected]..
>>> What instance would background image and
background colors not show in a
>>> browser? (All other images are fine)
>>
>>
>

I have dyslexia and use the color yellow as a background to the majority of the documents I read, however there is no option to change the background colour from white to yellow. Is there a way of making PDF backgrounds a different color?

I would really appreciate it if someone could assist me on this problem - it would make my life so much easier. I am a specialist infection prevention nurse and am constantly having to refer to PDF documents, I usually have to print each of these lengthy documents onto yellow paper (which at times I consider a waste of paper) I would much prefer to be able to read them on my laptop.
Thanks
Plumcrazi_2005

Try this: Go to Edit - Preferences - Accessibility and tick the Change Document Colors box. Then select the Custom Color option and you'll be able to select your own page and text colors. This might not work for all documents (like scanned ones), but it should help with most...

Need help with transparency and color quality in the forground

I need to make an image that is comprised of a collage in the back with a clear visible logo on top. I'm not sure if I'll need to change the hue's of the background collage images to create the image or if theres a way to make the image somewhat see through but keep true to the colors of the forground?

I agree with Trevor. I think you are over thinking the issue. Just place a logo in the same document, scale it, adjust its opacity if necessary and your done. As for the background of the logo, that can depend on how it was created. Preferable in photoshop so that you have a transparent background. But if the background happens to be pure white or black, you can use blend modes to remove the background.
But I am getting ahead of my self. Lets see how you do, post your results, if necessary a screen capture of photoshop with the layers panel open.

FileFormat: Reading transparency and color data separatley

I have a problem reading data via my file format plugin.
I can read the different layers in the format in Lab color mode (8-Bit).
In the file there is a layer transparency mask (1 byte for every pixel), which is stored right before the image data.
Currently I tried 2 approaches:
1.
- Set transparencyPlane to 3
- Set loPlane, hiPlane to 3
- Set colBytes to 1
- Set rowBytes to image width
- Set data to a buffer with size of image width
- read row from the transparency mask
-> advanceState gives error (-30500)
2.
- read transparency mask completely (I know, bad idea)
- Set transparencyPlane to 3
- Set loPlane = 0, hiPlane = 3
- Set colBytes to 4
- Set rowBytes to image width * 4
- Set data to a buffer with size of image width * 4
- read row from file in a temp. buffer
- copy values from temp. buffer and transparency for every pixel to the data buffer
-> advanceState ok but image ks not correct in PS
I think there must be another, better way to apply this transparency mask.
Thank you for your help....

Problem solved.
I forgot to tell PS the correct count of planes in the readStart selector.
So approach 1 was right.

White background transparency and black box outline removal ?

Hello,
I need to know how to do two things with Illustrator CS (yes, the old version).
First, I need to turn all white areas to transparent. I have two imported images which have white square backgrounds behind their pictures / designs. I need to over-lap a design over another, but the white area / square behind the image is interferring with the other. How do I make all white to be transparent ?
Second, when I remove / hide areas of an image with a white box it has a black outline. How do I remove this black outline?
Thanks,
Karl

1. Better take Photoshop or any other comparable raster programme.
2. You're probably talking about a black stroke. Read about strokes in the help files.

Transparency and color falloff with depth effect?

Videocopilot's 3D Falloff effect isn't compatible beyond CS4. How would I create this effect in CS5 or above?
http://www.videocopilot.net/tutorials/3d_falloff/

It's an easy expression involving distance calculation with length(point A, point B) and then feeding the result into a linear() on whatever property you need it, in this case obviously camera distance tied to a DOF filter or whatever... So in this case it would look like
camPos=thisComp.layeer("Camera").transform.position;
layPos=thisComp.layeer("XYZ").transform.position;
camDist=length(camPos,layPos);
linear(camDist(minDist,maxDist,minBlur,maxBlur)
Just fill in values for the min/max stuff...
Mylenium

How to change color of handwriting in a scanned document and make background transparent

I'm a newbie using Photoshop Elements 11 and trying--unsuccessfully so far--to change a document I've scanned so I can upload it to a custom fabric printing service. I've already scanned a handwritten recipe as a color .tif file (which looks black on white, because the original is black writing on a white background). I've also resized the image to 14" x 23". What I need help with is:
1. I want to change the color of the handwriting from black to red (specifically, to hex code cd0303).
2. I also want to add a 2"-wide solid color border in the same red around the 14" x 23" image of the recipe (so the finished image will be 18" x 27".
3. I want to make the background of the recipe transparent rather than white and make sure that the background stays transparent when I upload the finished image to the printing service as a .png file so that only the red writing and border will be printed onto the fabric.
I'd very much appreciate directions for doing those things. For reasons I don't understand, when I've created a blank file and set the background color to Transparent, then tried to make the changes I want, somewhere along the way the background changes to black.
Many thanks!
Digital Dabbler

Try this:
Open your scanned document, and be sure that there is good contrast. The native scan may need some help.
Duplicate the background layer, then shut off the visibility of the background layer by clicking on its eye icon. Work on background copy layer
Get the magic wand tool out of the toolbox, set tolerance to 32 (may have to experiment with this value), uncheck "contiguous".. Left click on a white background area. Hit delete on keyboard. Press CTRL+D to get rid of the marching ants.
Set your foreground color chip to cd0303
CTRL+left click on the layer thumbnail with the writing, then Edit>fill selection>foreground color
Press CTRL+D
Go to Select>all, then Edit stroke(outline) selection. Position stroke inside, set width of stroke to suit
Delete the background layer, and save in file format which preserves transparency.

SVG to PDF/AI gradient and transparency issues

This is probably quite off topic for these forums, so apologies for that up front, but I can't seem to get answers in more appropriate places.
I am trying to use inkscape or rsvg-convert, which both use cairo, to convert SVG to PDF.
Firstly, when I open the SVG in Illustrator directly, everything works as expected, but the cairo converted PDF has a couple of problems.
Typically I get "An unknown shading type was encountered" and the offending shapes are un-editable "images" with a clipping mask over them.
There are two circumstances that result in problems for me.
1) A gradient with only 2 stops.
In the following example I have duplicated the offset="0" stop which fixes things and means that the resulting shape that is filled with this gradient works fine. Without the duplicate declaration, the gradient is converted to an un-editable image with a clipping mask when the PDF is viewed in Illustrator.
   <linearGradient id="ian_symbols_b8a58aafc1f12e74492e9e865b7f569b" gradientUnits="userSpaceOnUse" x1="113.7275" y1="136.9414" x2="197.0259" y2="136.9414">
    <stop offset="0" style="stop-color:#927A62" id="stop1472" />
    <stop offset="0" style="stop-color:#927A62" id="stop1472_dup" />
    <stop offset="1" style="stop-color:#93866F" id="stop1474" />
   </linearGradient>
2) A shape that has an opacity that is less than "1". I don't know how to fix this one and still maintain the look of the original. I understand that there are some issues with transparency and the PDF format, but obviously the full AI version of the PDF format these days supports transparency.
Does anyone have any experience doing server-side conversions of SVG to PDF and have managed to create a PDF which contains gradients and transparency that are actually editable once opened in Illustrator?
Or does anyone know if there is something more I can do with the original SVG code to make the opacity work ok in the final PDF?
Thanks

Works fine for me as .ai with pdf comptible turned on. You may have input transparency in the wrong location in Illustrator. Change opacity in the gradient palette, and not tint in the color palette.
Opacity is 0 here, anything less tha 100% will create tranaprency. To proof in Illustratopr do a Shift Command D to change your background to a checkerboard pattern.

When i open a pdf it is transparent and i can see my desktop wallpaper behind it making it hard to read

when i try to open a PDF it is transparent and i can see the wallpaper behind it this makes it very hard to read

Try to disable hardware acceleration in Firefox.
*Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes
*https://hacks.mozilla.org/2010/09/hardware-acceleration/
Try to disable transparency in Windows.
Right click in a free space on your desktop.<br />
Left click on Personalization.<br />
There are four options at the bottom of the screen, choose "Window Color and Appearance".<br />
Select a border color<br />
Uncheck: "Enable transparency"
* http://www.howtogeek.com/howto/7955/how-to-fix-no-aero-transparency-in-windows-7/

How can I make the background one solid color? It is too difficult and noticeable when I use the retouch button and try to erase all the creases in my backdrop. So, how can I have just a solid white background?

How can I make the background one solid color? It is too difficult and noticeable when I use the retouch button and try to erase all the creases in my backdrop. So, how can I have just a solid white background?

When talking about a specific image posting the image may be useful.
One can use a Layer Mask and add a white Layer underneath.

How do I make image backgrounds black and white while maintaining color in the foreground objects?

I have a close up close-up image of an orchid with blurred background. I am trying to make the background black and white while maintaining the foreground color on the petals, buds and stems. Any ideas?

Use the Blank & White Brick and either brush the effect onto the background or brush is away from the foreground. "Detect Edges" will help control the edge of the mask.
You might be interested in knowing that you can brush on/away masks of different strengths, and thus produce effects in between 0% and 100%.
Search the forum -- there are several good posts detailing how to create this effect.
Sample search.
Message was edited by: Kirby Krieger -- added sample search.

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