Help! Small white margin is not dissapear on full-page img

piyarad27 · 01-31-2021, 09:36 PM

Hi, I have view multiple of the post and try to find a way to get rid of the small white line in when I try to convert epub to pdf. the image seem fine at first glance but when zoom in at the bottom of the page, the small white line would be visible.
Here is my code (see full code in Txt file)

<head>
<title>part0001</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<link href="../stylesheet.css" rel="stylesheet" type="text/css"/>

<style type="text/css">
@page {padding: 0pt; margin:0pt}
body { text-align: center; padding:0pt; margin: 0pt; }
</style>
</head>

<body>
<div>
<img <img alt="Image" src="image_rsrc2GE.jpg" width="1358" height="1920"/>
</div>
</body>
</html>

kovidgoyal · 01-31-2021, 10:21 PM

If you want full screen images use SVG, there is an axample of th emarkup here: https://manual.calibre-ebook.com/con...ormatting-demo

piyarad27 · 02-01-2021, 04:14 PM

I try the demo code that you provide but it doesn't work the white line at the bottom edge is still there. Here is how the code look like:

<?xml version='1.0' encoding='utf-8'?>
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<title>part0003</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<link href="../stylesheet.css" rel="stylesheet" type="text/css"/>

<style type="text/css">
@page {padding: 0pt; margin:0pt}
body { text-align: center; padding:0pt; margin: 0pt; }
</style>
</head>
<body>

<div style="display:none" class="title">Full screen image</div>
<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"
width="100%" height="100%" viewBox="0 0 1358 1920" preserveAspectRatio="xMaxYMid meet">
<image width="100%" height="100%" class="full-page-stretch" xlink:href="image_rsrc2GE.jpg"/>
</svg>
</body>
</html>

deback · 02-01-2021, 08:41 PM

Did you open the image in an image program to see if the line is in the image?

I see lots of codes in your stylesheet that can cause problems.

DNSB · 02-01-2021, 09:35 PM

Out of curiosity, what is the purpose of the class="full_page_stretch" class used in your code?

Quote:

<div style="display:none" class="title">Full screen image</div>
<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"
width="100%" height="100%" viewBox="0 0 1358 1920" preserveAspectRatio="xMaxYMid meet">
<image width="100%" height="100%" class="full-page-stretch" xlink:href="image_rsrc2GE.jpg"/>
</svg>

DNSB · 02-01-2021, 10:08 PM

Also you are using a 1358x1920 image but your PDF conversion settings are for a custom 1359x1920 page.

kovidgoyal · 02-01-2021, 10:13 PM

You cant preserve aspect ratio in your svg if you want no white borders.

piyarad27 · 02-02-2021, 06:16 AM

Quote:

Originally Posted by deback

Did you open the image in an image program to see if the line is in the image?

I see lots of codes in your stylesheet that can cause problems.

I open the image and the line doesn't exist on the image

piyarad27 · 02-02-2021, 06:19 AM

Quote:

Originally Posted by DNSB

Out of curiosity, what is the purpose of the class="full_page_stretch" class used in your code?

I just want to have the image fill up the page. I also try the code without class="full_page_stretch" but the white line still there under the image

piyarad27 · 02-02-2021, 06:21 AM

Quote:

Originally Posted by kovidgoyal

You cant preserve aspect ratio in your svg if you want no white borders.

I don't understand what you mean. Are you saying that I should remove preserveAspectRatio="xMaxYMid meet" ?

piyarad27 · 02-02-2021, 06:26 AM

Quote:

Originally Posted by DNSB

Also you are using a 1358x1920 image but your PDF conversion settings are for a custom 1359x1920 page.

I also try using 1358x1920 decalpixle in PDF conversion settings

kovidgoyal · 02-02-2021, 10:06 AM

preserveAspectRatio="none"

piyarad27 · 02-02-2021, 04:16 PM

Quote:

Originally Posted by kovidgoyal

preserveAspectRatio="none"

When I try the preserveAspectRatio="none" The white line is still there and the image is overflow to other page (image p5). Here is how the full code look like:

<div style="display:none" class="title">Full screen image</div>

<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"
width="100%" height="100%" viewBox="0 0 1358 1920" preserveAspectRatio="none">
<image width="100%" height="100%" xlink:href="image_rsrc2GE.jpg"/>
</svg>

P.S If I type in the custom size output as 1358x1920 instead of 1359x1920
the side of the image will also have small white border line(image p5.2) you can compare with the image p5 since the photo took at the same horizontal location

DNSB · 02-02-2021, 04:39 PM

How does the image look at a more reasonable magnification, say 200%. Your images all seem to be at 6400%. Can you also show an image of the portion between two pages.

piyarad27 · 02-02-2021, 05:39 PM

Quote:

Originally Posted by DNSB

How does the image look at a more reasonable magnification, say 200%. Your images all seem to be at 6400%. Can you also show an image of the portion between two pages.

Here is how it look with 200% (P6) and on the zoom of 6400%(p6.2) this is the code that I use

<style type="text/css">
@page {padding: 0pt; margin:0pt}
body { text-align: center; padding:0pt; margin: 0pt; }
</style>
</head>

<body>

<div style="display:none" class="title">Full screen image</div>

<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"
width="100%" height="100%" viewBox="0 0 1358 1920" preserveAspectRatio="none">
<image width="100%" height="100%" xlink:href="image_rsrc2GE.jpg"/>
</svg>

</body>
</html>

P.S I don't want the white part because I' bit OCD or perfectionist

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01-31-2021, 10:21 PM	#2
kovidgoyal creator of calibre Posts: 45,146 Karma: 27110894 Join Date: Oct 2006 Location: Mumbai, India Device: Various	If you want full screen images use SVG, there is an axample of th emarkup here: https://manual.calibre-ebook.com/con...ormatting-demo

02-01-2021, 08:41 PM	#4
deback Book E d i t o r Posts: 432 Karma: 288184 Join Date: May 2015 Device: Laptop	Did you open the image in an image program to see if the line is in the image? I see lots of codes in your stylesheet that can cause problems.

02-01-2021, 10:08 PM	#6
DNSB Bibliophagist Posts: 44,475 Karma: 167912649 Join Date: Jul 2010 Location: Vancouver Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos	Also you are using a 1358x1920 image but your PDF conversion settings are for a custom 1359x1920 page.

02-01-2021, 10:13 PM	#7
kovidgoyal creator of calibre Posts: 45,146 Karma: 27110894 Join Date: Oct 2006 Location: Mumbai, India Device: Various	You cant preserve aspect ratio in your svg if you want no white borders.

02-02-2021, 10:06 AM	#12
kovidgoyal creator of calibre Posts: 45,146 Karma: 27110894 Join Date: Oct 2006 Location: Mumbai, India Device: Various	preserveAspectRatio="none"

02-02-2021, 04:39 PM	#14
DNSB Bibliophagist Posts: 44,475 Karma: 167912649 Join Date: Jul 2010 Location: Vancouver Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos	How does the image look at a more reasonable magnification, say 200%. Your images all seem to be at 6400%. Can you also show an image of the portion between two pages.