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Next: Auto crop pdf files
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External
Since: Jul 22, 2005
Posts: 40
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(Msg. 1) Posted: Sun Mar 16, 2008 9:59 pm
Post subject: How to edit bitmap part of PDF image in Illustrator?
Archived from groups: alt>graphics>illustrator, others (more info?)
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Any way I can erase selected pixels in a bitmap image that's already
been inserted into an Illustrator vector image document that's been
converted to PDF, without having to pull the bitmap object back out of
the document, and without converting the whole doc to bitmap form?
That is, I started with big tiff (or was it jpeg) B&W bitmap image;
dragged it into an Illustrator document; added all sorts of vector
colored annotations, text, etc, all over it; and saved it as PDF.
(All the vector objects and the bitmap image are all a single layer, I'm
pretty sure, though I think the B&W pixel image is behind everything
else.)
Now I want to modify one small area of the bitmap image by erasing all
the pixels in a small region of it, then drawing some vector stuff in
that area, without starting all over, messing up any of the added vector
art, or having to pull out the bitmap image, edit it in Photoshop
Elements, and then try stick it back in, or anything like that.
Can I edit the bitmap part of this PDF doc in Photoshop Elements, while
leaving the vector part untouched and not converted to bitmap format?
Elements doesn't seem to want to open the PDF without bitmapping all of
it. |
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External
Since: Mar 07, 2006
Posts: 8
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(Msg. 2) Posted: Mon Mar 17, 2008 4:55 pm
Post subject: Re: How to edit bitmap part of PDF image in Illustrator? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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AES schreef:
> Any way I can erase selected pixels in a bitmap image that's already
> been inserted into an Illustrator vector image document that's been
> converted to PDF, without having to pull the bitmap object back out of
> the document, and without converting the whole doc to bitmap form?
>
> That is, I started with big tiff (or was it jpeg) B&W bitmap image;
> dragged it into an Illustrator document; added all sorts of vector
> colored annotations, text, etc, all over it; and saved it as PDF.
>
> (All the vector objects and the bitmap image are all a single layer, I'm
> pretty sure, though I think the B&W pixel image is behind everything
> else.)
>
> Now I want to modify one small area of the bitmap image by erasing all
> the pixels in a small region of it, then drawing some vector stuff in
> that area, without starting all over, messing up any of the added vector
> art, or having to pull out the bitmap image, edit it in Photoshop
> Elements, and then try stick it back in, or anything like that.
>
> Can I edit the bitmap part of this PDF doc in Photoshop Elements, while
> leaving the vector part untouched and not converted to bitmap format?
> Elements doesn't seem to want to open the PDF without bitmapping all of
> it.
Why not note down the exact position of the bitmap in Illustrator (use
Transformer). Open the bitmap in Photoshop, edit it and replace it in
Illustrator |
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External
Since: Jul 22, 2005
Posts: 40
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(Msg. 3) Posted: Mon Mar 17, 2008 4:55 pm
Post subject: Re: How to edit bitmap part of PDF image in Illustrator? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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In article <647ik4F2aagnsU1.TakeThisOut@mid.individual.net>,
Steggy <steggy2001.TakeThisOut@hotmail.com> wrote:
>
> Why not note down the exact position of the bitmap in Illustrator (use
> Transformer). Open the bitmap in Photoshop, edit it and replace it in
> Illustrator
Can do that if I must (haven't learned about Transformer yet). Was
hoping that Illustrator (thought I'm aware it's not a pixel editor)
would at least have somewhere the ability to just erase individual
pixels in bitmap objects in a vector image doc. >> Stay informed about: How to edit bitmap part of PDF image in Illustrator? |
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External
Since: Jul 22, 2005
Posts: 40
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(Msg. 4) Posted: Mon Mar 17, 2008 4:55 pm
Post subject: More on bitmaps in Illustrator/PDF documents? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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> > Why not note down the exact position of the bitmap in Illustrator (use
> > Transformer). Open the bitmap in Photoshop, edit it and replace it in
> > Illustrator
>
> Can do that if I must (haven't learned about Transformer yet). Was
> hoping that Illustrator (thought I'm aware it's not a pixel editor)
> would at least have somewhere the ability to just erase individual
> pixels in bitmap objects in a vector image doc.
Out of curiosity:
Suppose I open a jpeg or tiff bitmap image in Illustrator; add some
vector stuff along with it; Save to PDF (with Illustrator editing
capability preserved); reopen this PDF in Illustrator; Scale the entire
resulting image up and down in size several times, by varying amounts;
repeat as needed.
Through all this manipulation, does Illustrator somehow preserve the
full original jpeg or tiff bitmap file somewhere in the image file? --
and just resize a copy of it as needed to satisfy the output display
device and scaling?
Or if I Scale up and down several times, am I losing a bit of the jpeg
quality in each rescaling?
Does this behave differently if I start with a tiff image? >> Stay informed about: How to edit bitmap part of PDF image in Illustrator? |
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External
Since: Mar 04, 2008
Posts: 6
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(Msg. 5) Posted: Mon Mar 17, 2008 6:59 pm
Post subject: Re: How to edit bitmap part of PDF image in Illustrator? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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On Mar 16, 9:59 pm, AES <sieg... DeleteThis @stanford.edu> wrote:
> Any way I can erase selected pixels in a bitmap image that's already
> been inserted into an Illustrator vector image document that's been
> converted to PDF, without having to pull the bitmap object back out of
> the document, and without converting the whole doc to bitmap form?
>
> That is, I started with big tiff (or was it jpeg) B&W bitmap image;
> dragged it into an Illustrator document; added all sorts of vector
> colored annotations, text, etc, all over it; and saved it as PDF.
>
> (All the vector objects and the bitmap image are all a single layer, I'm
> pretty sure, though I think the B&W pixel image is behind everything
> else.)
>
> Now I want to modify one small area of the bitmap image by erasing all
> the pixels in a small region of it, then drawing some vector stuff in
> that area, without starting all over, messing up any of the added vector
> art, or having to pull out the bitmap image, edit it in Photoshop
> Elements, and then try stick it back in, or anything like that.
>
> Can I edit the bitmap part of this PDF doc in Photoshop Elements, while
> leaving the vector part untouched and not converted to bitmap format?
> Elements doesn't seem to want to open the PDF without bitmapping all of
> it.
AES,
Is the bitmap image embedded or linked in Illustrator? If it's a
linked file, and when you saved it as a PDF you had Preserve
Illustrator Editing Capabilities enabled, you can open the file,
select the image, and from the Main menu select Edit>Edit Original. If
Photoshop is set as the application that opens the type of bitmap file
(JPEG, TIFF, etc.) the image will open in Photoshop. You can edit it
there, save the file, and when you return to Illustrator you'll get a
dialog stating that the file has been modified. If you say "Yes" to
update the file, it will update without the unwanted pixels. >> Stay informed about: How to edit bitmap part of PDF image in Illustrator? |
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External
Since: Jun 25, 2006
Posts: 10
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(Msg. 6) Posted: Mon Mar 17, 2008 11:10 pm
Post subject: Re: How to edit bitmap part of PDF image in Illustrator? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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AES wrote:
> In article <647ik4F2aagnsU1.DeleteThis@mid.individual.net>,
> Steggy <steggy2001.DeleteThis@hotmail.com> wrote:
>
>> Why not note down the exact position of the bitmap in Illustrator (use
>> Transformer). Open the bitmap in Photoshop, edit it and replace it in
>> Illustrator
>
> Can do that if I must (haven't learned about Transformer yet). Was
> hoping that Illustrator (thought I'm aware it's not a pixel editor)
> would at least have somewhere the ability to just erase individual
> pixels in bitmap objects in a vector image doc.
Why not just apply a clipping path the the bitmap to negate the region
you don't want showing.
Apart from that, I'm not sure. I've never used Photoshop Elements. In
regular Photoshop you can Import>PDF Image, edit it and save. The
results should then appear in the PDF. >> Stay informed about: How to edit bitmap part of PDF image in Illustrator? |
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External
Since: Mar 07, 2006
Posts: 8
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(Msg. 7) Posted: Mon Mar 17, 2008 11:11 pm
Post subject: Re: More on bitmaps in Illustrator/PDF documents? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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AES schreef:
>>> Why not note down the exact position of the bitmap in Illustrator (use
>>> Transformer). Open the bitmap in Photoshop, edit it and replace it in
>>> Illustrator
>> Can do that if I must (haven't learned about Transformer yet). Was
>> hoping that Illustrator (thought I'm aware it's not a pixel editor)
>> would at least have somewhere the ability to just erase individual
>> pixels in bitmap objects in a vector image doc.
>
> Out of curiosity:
>
> Suppose I open a jpeg or tiff bitmap image in Illustrator; add some
> vector stuff along with it; Save to PDF (with Illustrator editing
> capability preserved); reopen this PDF in Illustrator; Scale the entire
> resulting image up and down in size several times, by varying amounts;
> repeat as needed.
>
> Through all this manipulation, does Illustrator somehow preserve the
> full original jpeg or tiff bitmap file somewhere in the image file? --
> and just resize a copy of it as needed to satisfy the output display
> device and scaling?
>
> Or if I Scale up and down several times, am I losing a bit of the jpeg
> quality in each rescaling?
>
> Does this behave differently if I start with a tiff image?
Illustrator is vector.
Photoshop and others are bitmap.
One day all will be totally integrated, not yet.
Tiff or JPEG .......please tell us what you want to to do with the end
result. Print or Web? Simply scaling up a bitmap will harm the bitmap. >> Stay informed about: How to edit bitmap part of PDF image in Illustrator? |
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