When I use Ghostscript on a PDF it breaks the PDF's hyperlinks. Why, and how can I retain hyperlink functionality after doing so?  I have made a PDF named link.pdf with the text Hello World where world is linked to . I tried this beginning with both LibreOffice Writer and LaTeX:  \documentclass{article} \usepackage{hyperref} \begin{document}  Hello \href{https://www.bbc.com/}{World}.  \end{document}   The link works.  Now execute    $ gs -sDEVICE=pdfwrite \      -dNOPAUSE         \      -dQUIET           \      -dBATCH           \      -dPDFSETTINGS=/ebook \      -sOutputFile=link-export-gs.pdf \       link.pdf   The link is broken.   Edit1: Originally asked about Ghostscript and ps2pdf. Given @AlexG's comments, removed ps2pdf.  Edit2: Note, the reason I wish to do this is to utilise Ghostscript's -dPDFSETTINGS=/ebook compression, so I added that to the command.
I usually compress my tex PDFs with ghostscript:  pdflatex -shell-escape file.tex  gs -sDEVICE=pdfwrite        \    -dCompatibilityLevel=1.4   \    -dPDFSETTINGS=/prepress      \    -dNOPAUSE -dQUIET -dBATCH      \    -sOutputFile=file_compressed.pdf \     file.pdf   Normally that works well, but if I have relative links to local files, the links don't work afterwards.  Minimal example:  \documentclass{beamer} \usepackage{hyperref}  \begin{document}     \begin{frame}         \href{run:./audio.mp3}{test}     \end{frame} \end{document}   The link works in file.pdf but not in file_compressed.pdf. Is there any pdflatex or ghostscript setting that retains the link in the compressed version?  I use Acrobate Reader 10.1.14 for viewing, Ghostscript 9.10 and pdfTeX 3.14159265-2.6-1.40.15 (TeX Live 2014) on OS X 10.9.5.    Update: The breakage of hyperlinks had nothing to do with compressing the PDFs. The breakage happened for all re-processing of PDFs containing hyperlinks in its input PDF.
What is the relationship between UV image and material texture? I am struggling to understand perhaps a very simple concept in Blender. There are materials which might have some diffuse coloring and a texture image, and there are also UV maps with their own images. Both can be applied to meshes or faces, but it seems that if a face has UV map then the material's texture is ignored and an image for UV map is picked.   If so, what is the use for a texture in a material if it is replaced by UV map's image?   EDIT: I've added some images to clarify the issue I have.   Case 1: a basic plane with material which has a texture, and no UV map. Diffuse color is applied, but material's texture is not.   Case 2: like above, but with reduced intensity of texture.   Case 3: Added UVmap and added image to the UVmap. Now I have texture, but not the diffuse color, and if UVmap was a different image, it would be picked regardless of texture set in the material.   So if I have UVmap image, what is the material texture for? Do we still need to avoid using frames and iframes for SEO? I thought frame and iframe were bad for SEO, but today I was doing a search for "numismatica" on Google.it.  The 3rd site is lemonete.com which is all made with frames. A competitor site (nummus.com) that has no frames ranks much lower when searching for the same word: "numismatica".  So can we use frames without taking an SEO hit now?  Any explanation (possibly simple) would be appreciated also about the fact the 2nd site ranks much lower. :) Inequality ${n \choose k} \leq \left(\frac{en}{ k}\right)^k$ Paper status changed to “Decision in Process” rapidly after initial submission I just saw now that a new build had rolled out in which the comment upvote and flag options are always visible. Previously, one had to mouse over the area in order to see them.  Why was this just changed? Is it to support touch screens? I'll admit, it was difficult to find the flag button using my touchscreen laptop running Microsoft Edge.  Cross-site duplicate on MSO: Has any Dark Force user/ally ever said "May the Force be with you"? How / can you connect Ethernet devices together without magnetics? How do you wire it up? What sorts of practical limitations are there on doing this?  To clarify, I'm not trying to connect two computers here. I'm thinking specifically of creating a small network of microcontrollers on a single board. Lets say the total length of a network segment is no longer than 6 inches. This would be for 10BaseT or at most 100BaseT. can't read from SQlite database I know and I have proved more than once that the set of irrational numbers ($\mathbb{I}$) is uncountable, but now I'm given to solve this problem:   Show that $|\mathbb{I}|=|\mathbb{R}|$,  How can I do that?  Do I need to assume the Continuum Hypothesis in order to that statement to be true?  Thanks Good way to make \textcircled numbers? This question led to a new package:      I'm trying to make some good-looking numbers in a circle, using the simple command:  \textcircled{1}   However, the circle is misaligned vertically with the number, and look a bit sloppy:    Any suggestions how can I adjust the vertical alignment so that the numbers look more centered w.r.t to the circles? Or, if that's not an option, what other ways to achieve the same results are possible?  I will use those only for numbers, and in very few places, so manual adjustment per glyph is an option.  I'm using pdfLaTeX with Computer Modern, if that matters. LWC Get Pick-list Field Values In LWC, is it possible to get a pick-list field's possible values?  I'm writing a component that is embded into a lightning record page. I need my component to be able to load the record from the page, get data from the fields and use that data to pre-populate my search form with default values.  I have this working with city/state and checkbox fields. Right now the city/state fields are built pull data from an aggregate query of contacts to find all possible state/city combinations (I know this is doomed to fail when the records reach over 50k contacts but Its good enough for now).  I have a pick-list field on my object called skill level, I need to be able to build a combo box that has all the possible values for skill level and set the default value to the value on the associated record.  I'd like to avoid hard-coding the available options if possible.  In LWC, is it possible to get a pick-list field's possible values? Definite integral, quotient of logarithm and polynomial: $I(\lambda)=\int_0^{\infty}\frac{\ln ^2x}{x^2+\lambda x+\lambda ^2}\text{d}x$ I need to find the intersection point of 2 line segments (lines are finite, i.e., they have end points).   e.g. segment 1 from $(x_1, y_1)$ to $(x_2, y_2)$ -- segment 2 from $(x_3, y_3)$ to $(x_4, y_4)$  you can assume $m_1$ and $m_2$ are the gradients of segment 1 and segment 2 respectively  similarly, $c_1$ and $c_2$ being the y-intercepts of segment 1 and segment 2 respectively  Using $y=mx+c$ I can easily find the equations of both lines and then derive the intersection point from those equations and check if that point actually lies on both the line segments (intersection point may not lie between the end points).  My problem is when I calculate the gradients $m_1$ and $m_2$ I do $\frac{y_2-y_1}{x_2-x_1}$ there for if one of the lines is vertical then I am going to have problems. How can I deal with this?  Another problem is that if the two segments intersect at a point which is also the same as one of the end points then I want to assume that they are not intersecting.  e.g. if segment 1 is from $(2, 3)$ to $(3, 7)$ and segment 2 is from $(3, 7)$ to $(7, 3)$ then I want to assume they don't intersect. This question is about the net speed.  I'm from China, and I find that opening pages on Stack Overflow is very fast, normally within a range of 1 to 4 seconds. This speed is very good for a website outside China; it's even faster than some native websites.  Not every website outside China has such good speed, so I am wondering why and how Stack Overflow manages to be so quick. I have binary data in an unsigned char variable. I need to convert them to PEM base64 in c. I looked in openssl library but i could not find any function. Does any body have any idea? Limit $\frac{x^2y}{x^4+y^2}$ is found using polar coordinates but it is not supposed to exist. $|_{x=1}$ notation? I had the equation: $$\frac{1}{(1+x)(1-x)^2}=\frac{A}{(1-x)^2}+\frac{B}{1-x}+\frac{C}{1+x}$$ $$A=\left.\frac{1}{1+x}\right|_{x=1} = \frac{1}{2} \tag2$$ What does $(2)$ mean? Particularly, the notation $|_{x=1}$ How to recover deleted files? Are there any tools, methods, incantations to recover recently deleted files on Ubuntu?  If it makes any difference, I want to recover a  2.x database file. But would be better to have a method/tool that works on any kind of file. We have Godaddy's Dedicated server. but we are facing problems with this server. after on 400-500 active users server randomly timeout or kill users. we this it's error with IIS. We did conversation with some server experts they said there is some issue with IIS. but nobody can resolve this issue. i share a screen shoot of analytic of active users. Please help us. If moderators can view , can we see comments we've deleted? We can see our deleted answers, but why not our deleted comments?