Recent posts

#1
Beginner Talk / Re: Why use DPI (not ppi)? (im...
Last post by a.l.e - Today at 04:28:27 PM
"""
In simple, rudimentary, terms...

  • A dot is the smallest possible spot of ink on paper.
  • A pixel is the smallest possible spot of light on a screen.

Dots are never on a screen and pixels are never on paper.
"""

https://graphicdesign.stackexchange.com/a/154690

this is the short version of the fine explanation by yi chuang.
#2
Beginner Talk / Re: Why use DPI (not ppi)? (im...
Last post by RodneyLee - Today at 02:54:33 PM
A DOT is a PIXEL
#3
PDF Generation / Re: Best pdf output for Family...
Last post by a.l.e - Today at 11:22:42 AM
for future reference (since you seem to have produced your book now): you might want to directly import the pdfs page by page as vector (without first selecting an image frame).

probably, you will want to import the text as vectors.

- make sure that your document is active and no frame is selected
- file > import > get vector file
- pick the pdf
- choose the page to be imported
- choose to import the text as vectors
- you will get the pdf as grouped vector drawing (it will not be in a frame and you can ungroup it; of course, you won't be able to modify the text)
#4
PDF Generation / Re: Best pdf output for Family...
Last post by FemmesoleNZ - Today at 11:03:13 AM
Sorry did not attach file; now attached. Not sure how clear this will be.
#5
PDF Generation / Re: Best pdf output for Family...
Last post by FemmesoleNZ - Today at 10:53:08 AM
Thank you both for your replies. Yes, I am well aware of the Preview Settings in Scribus and use them also as you describe. Do not compress when exporting pdfs from anywhere.

I export all the charts (usually single page) and the Family Group Reports (multipage) from Legacy to pdf files; convert so that each page is .png; set image frames in Scribus and "get image" for each page. For text I want to add, I use the Scribus Text Frames. Also add other images as required into 'white spaces', e.g. enlargement of grave image or probate entry.

I am not sure where the problem with the font conversion occurs, but its effect is significant. Attached find a sample I just made by importing part of a Family file as png into an image frame on the top of the page and a pdf version into an image frame at the bottom of the same page. The pdf import is not as clear as the png import, although this time it is not as bad as it was when I imported a whole file this way. Both preview settings at full resolution.

Certainly interesting; but thanks to Scribus that I can actually produce a reasonable book anyway!





#6
Beginner Talk / Re: Why use DPI (not ppi)? (im...
Last post by yichuang驿窗 - June 20, 2024, 04:36:29 PM
I think it should be PPI, not DPI.

First look at the ppi.
The sole purpose of ppi is to determine the physical print size of a pixel. Assuming an image is 600x900 pixels, what is the size of that image when printed or printed to paper?

This is when ppi is used. if the resolution of an image is 300 ppi, that means 300 pixels spread over the length of an inch, then the physical print size of each pixel is 1/300 of an inch = 0.003 inches. a 600*900 pixel image with a resolution of 300 ppi translates to a print size of 0.003x600*0.003x900. That ends up being 2x3 inches.

No dpi is used in this process, only ppi.

Look at dpi.
dpi initially describes the performance of the printer, said the printer in the length of an inch of paper can print how many dots.

Let's say the resolution of a printer is 300 dpi, which means that this printer can print 300 dots on a length of one inch of paper.

Or, to describe a scanner, it means that the scanner can read information about how many dots on one inch from the paper. There is no ppi involved here, only dpi.

Now we have a look at Scribus.

In Scribus we need a ppi to tell printer how much the physical print size of the image pixel is. For this reason, we need only ppi, not dpi.


-------
DPI is for printer, like laser heads for laser printers, or printheads for inkjet printers. The dpi only reflects the level of accuracy of the printer itself and has nothing to do with the image.
#7
Beginner Talk / Re: Why use DPI (not ppi)? (im...
Last post by Aleks100 - June 20, 2024, 01:46:51 PM
DPI, for sure. Google dpi vs ppi
#8
Beginner Talk / Re: Why use DPI (not ppi)? (im...
Last post by yichuang驿窗 - June 20, 2024, 12:39:24 PM
I also think the correct one should be ppi. but I see that both Content Properties and the Scribus wiki are dpi, so that creates confusion.
#9
Beginner Talk / Re: Why use DPI (not ppi)? (im...
Last post by Nermander - June 20, 2024, 11:03:42 AM
PPI would be the correct term, but for digital media the PPI equals the DPI. I am not aware of any digital format where a pixel is made up of several dots.
#10
Beginner Talk / Why use DPI (not ppi)? (image ...
Last post by yichuang驿窗 - June 20, 2024, 08:00:43 AM
The location labeled on the attached screenshot uses the DPI.
I looked at the wiki, and the WIKI also mentions that it should be DPI.
Why use DPI instead of PPI?

The screencapture is the Content Properties of image frame.