Hi,
Here is a PDF of a 141 year-old book: https://ia600701.us.archive.org/18/item ... 00coll.pdf whose pages have changed color with time.
How could I use the Color Conversion tool to make the pages all as-new again? If not Color Conversion, any other way?
Sincerely,
BXR
One Hundred and Forty-One Year-Old Book: Yellowed Pages - Convert Colors? SOLVED
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Re: One Hundred and Forty-One Year-Old Book: Yellowed Pages - Convert Colors? SOLVED
Hi, brody-xr3
There are two ways to go about this, although both of them have their share of possible issues.
The first method is the manual way, and the method I would recommend when it comes to an older document like this, for both retainment of information, and overall document size savings.
It appears that the scanner which generated this document has already dont much of the work, and split the image of the text into a separate entity from the page background. This means that it can be deleted independently, (hopefully) without affecting the text. To do this, I recommend use of the "content" pane, so that you can see all the images and content on each page, and note that there are two overlapping images: In my investigation, the images with smaller dimensions seem to most often be the ones not containing text, thus they should be the one we delete, resulting in a document looking like this: Of course this is not perfect, you will notice that the fourth page in this example has lost some of the stamp in the upper corner of the page. Another excellent reason why this should stay a "manual" process, so that you do not accidentally loose any original details like this. You may need to use an image editor to remove any "extras" which are conversely retained and should not be.
The other option is to use the "recompress images" function, and recompress the images to "black and white". At the moment, this would also be a manual (image by image) process. I am suggesting this second method because in the future we will be offering a "recompress multiple images" tool. That tool will allow you to recompress the entire documents images all at once in bulk, saving time, but at the risk of not noticing potential missing content like what I showed above.
I cannot offer a timeline on its implementation, but it has been seeing development time and should hopefully be available in the future.
Kind regards,
There are two ways to go about this, although both of them have their share of possible issues.
The first method is the manual way, and the method I would recommend when it comes to an older document like this, for both retainment of information, and overall document size savings.
It appears that the scanner which generated this document has already dont much of the work, and split the image of the text into a separate entity from the page background. This means that it can be deleted independently, (hopefully) without affecting the text. To do this, I recommend use of the "content" pane, so that you can see all the images and content on each page, and note that there are two overlapping images: In my investigation, the images with smaller dimensions seem to most often be the ones not containing text, thus they should be the one we delete, resulting in a document looking like this: Of course this is not perfect, you will notice that the fourth page in this example has lost some of the stamp in the upper corner of the page. Another excellent reason why this should stay a "manual" process, so that you do not accidentally loose any original details like this. You may need to use an image editor to remove any "extras" which are conversely retained and should not be.
The other option is to use the "recompress images" function, and recompress the images to "black and white". At the moment, this would also be a manual (image by image) process. I am suggesting this second method because in the future we will be offering a "recompress multiple images" tool. That tool will allow you to recompress the entire documents images all at once in bulk, saving time, but at the risk of not noticing potential missing content like what I showed above.
I cannot offer a timeline on its implementation, but it has been seeing development time and should hopefully be available in the future.
Kind regards,
Dan McIntyre - Support Technician
Tracker Software Products (Canada) LTD
+++++++++++++++++++++++++++++++++++
Our Web site domain and email address has changed as of 26/10/2023.
https://www.pdf-xchange.com
Support@pdf-xchange.com
Tracker Software Products (Canada) LTD
+++++++++++++++++++++++++++++++++++
Our Web site domain and email address has changed as of 26/10/2023.
https://www.pdf-xchange.com
Support@pdf-xchange.com
Re: One Hundred and Forty-One Year-Old Book: Yellowed Pages - Convert Colors?
Hi Daniel,
When I think about how hard you guys are working I feel grateful! Thanks, Daniel!
Sincerely,
BXR
When I think about how hard you guys are working I feel grateful! Thanks, Daniel!
Sincerely,
BXR
- TrackerSupp-Daniel
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Re: One Hundred and Forty-One Year-Old Book: Yellowed Pages - Convert Colors?
Hi, brody-xr3
Thank you for the kind words, we try our best!
Kind regards,
Thank you for the kind words, we try our best!
Kind regards,
Dan McIntyre - Support Technician
Tracker Software Products (Canada) LTD
+++++++++++++++++++++++++++++++++++
Our Web site domain and email address has changed as of 26/10/2023.
https://www.pdf-xchange.com
Support@pdf-xchange.com
Tracker Software Products (Canada) LTD
+++++++++++++++++++++++++++++++++++
Our Web site domain and email address has changed as of 26/10/2023.
https://www.pdf-xchange.com
Support@pdf-xchange.com
Re: One Hundred and Forty-One Year-Old Book: Yellowed Pages - Convert Colors?
Hi Daniel,
Here is another vote for this.
You wrote:
It would be SO GREAT to have all those brown pictures done away with with the push of a button.
Sincerely,
BXR
Here is another vote for this.
You wrote:
I've got an...824! page document with the same page condition as the one here: download/file.php?id=13664&t=1I am suggesting this second method because in the future we will be offering a "recompress multiple images" tool. That tool will allow you to recompress the entire documents images all at once in bulk, saving time, but at the risk of not noticing potential missing content like what I showed above.
I cannot offer a timeline on its implementation, but it has been seeing development time and should hopefully be available in the future.
It would be SO GREAT to have all those brown pictures done away with with the push of a button.
Sincerely,
BXR
- TrackerSupp-Daniel
- Site Admin
- Posts: 8613
- Joined: Wed Jan 03, 2018 6:52 pm
One Hundred and Forty-One Year-Old Book: Yellowed Pages - Convert Colors?
Dan McIntyre - Support Technician
Tracker Software Products (Canada) LTD
+++++++++++++++++++++++++++++++++++
Our Web site domain and email address has changed as of 26/10/2023.
https://www.pdf-xchange.com
Support@pdf-xchange.com
Tracker Software Products (Canada) LTD
+++++++++++++++++++++++++++++++++++
Our Web site domain and email address has changed as of 26/10/2023.
https://www.pdf-xchange.com
Support@pdf-xchange.com