Comments on: Feedback

By: Absar Ahmed

Absar Ahmed — Mon, 09 Jan 2012 11:09:44 +0000

Just want to show my gratitude for making your such a useful notebook available to everyone.

Thanks a bundle!!! : )

By: Antonis

Antonis — Thu, 17 Nov 2011 09:50:36 +0000

Hi Laurens!

I’m a prepress -one man show type- operator from Greece.
Thank’s a million for your site,keep up the good work!

By: Hamid Peyvandi

Hamid Peyvandi — Sun, 21 Aug 2011 07:11:09 +0000

Thank you very much for useful information in your site.

By: Yulia

Yulia — Thu, 21 Jul 2011 10:47:58 +0000

hi!
i don’t know if its the right place to write it..but..
My name is Yulia,im from Israel.
Im graphic designer…and im used to read more about art and design and not about technical things,but your site is great!:)
so much useful information,very helped me.
thanks!

By: Laurens

Laurens — Wed, 13 Apr 2011 21:55:45 +0000

I did. English isn’t my mother tongue and mistakes like this get through, especially if the spell checker doesn’t catch them. Thanks for pointing out the error.

By: Mark

Mark — Wed, 13 Apr 2011 14:26:45 +0000

When reading about vectors and bitmaps, I saw a sentence that said something about company logo’s. A professional website should know that that’s an unnecessary apostrophe since it’s talking about plural logos, not that the logo is showing posession. Please fix this.

By: Joris Van Damme

Joris Van Damme — Thu, 31 Mar 2011 12:34:08 +0000

Laurens,

There’s an outdated link on your page /library/file-formats/tiff. Near the bottom of that page, it links to the old Unofficial TIFF home page, but that page is long gone. Nowadays, the unofficial TIFF home is http://www.awaresystems.be/imaging/tiff.html.

The filesize issue may also be regarded somewhat outdated. We have a page over at awaresystems.be on a community effort to extend the TIFF file format beyond the 4 gigabyte limit. This new TIFF-based format, or new version of TIFF, depending on your point of view, is called BigTIFF, and did already get support inside the semi-official open source TIFF codec LibTiff.

Keep it up!

By: Anna Brooks

Anna Brooks — Thu, 24 Mar 2011 08:35:07 +0000

Hi, Laurens! My name is Anna Brooks and I am from Eltima Software Company. Can you please send me your contact e-mail? Thanks in advance.

By: Peter Reid

Peter Reid — Fri, 18 Mar 2011 15:19:28 +0000

Why should ppi be double the line screen? 150lpi print requires 300 ppi image, I know the rule but it makes no sense. A cmyk print job at 150lpi has four dots of varying sizes depending on the colour being rendered, which can only describe a single pixel, so a 150ppi should look exactly like a 300ppi image, if fact the results should be more predictable. This seems to be a huge redundancy and files 4 times the size what the need to be.

The question is related to ink jet printers advertising say a 1440dpi, how many dpi are required to render a single pixel. If the micro dots are all the same size it might require a 16×16 matrix to render a single pixel which would put it below 100ppi. Do they achieve the image quality by mimicking a continuos tone image? Rolland advertises a variable size dot but I some how doubt its any like the 5% to 95% accuracy of a press line screen. The stochastic screening I sure helps the inkjet prints.

By: Michael Jahn

Michael Jahn — Thu, 24 Feb 2011 17:42:30 +0000

a long time ago – at this wonderful web address – there used to be a link to an afterward that I wrote for a book that was published by Frank Romano – PDF Printing and Publishing – The Next Revolution After Guttenberg…

and a link to the my 1997 cmyk.pdf file

http://goo.gl/sElgA

Did they get thrown out with all that other stuff prior to 2007 ?