I've been looking left, right and center but was not able to find a definitive answer as to how and whether it is possible to increase document size in LaTeX over the magic 200inch limit.
For a project I work on I need to be able to dynamically generate PDF/EPS that can be used to print on up to 32 yards long medium. The important factor is, that this print job must be seamless and contains color stripes, symbols and texts on repeat throughout the entire length.
I know that PDF 1.6+ supports a much larger document size via setting UserUnits. Is that something that can be used in LaTeX and if so, how would I go about this?
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I can generate the MathML to PDF out using the jEuclid ("mml2xxx.bat") but what I get is a PDF with a size A4
What I need is, I want the PDF size exactly as per the equation in the PDF document
What I got now :
What I need :
What is the intended destination of the PDF equation/expression? The reason I ask is that some applications are smart enough to know not to use the whole A4 size, and display just the math part. If you're using InDesign, for example, and you use the Place command to place this PDF into a document, it should appear at the proper size, and likely even with the correct baseline adjustment.
I am looking for a way to measure the coordinates of different rectangles on a PDF file?
Mainly I do have to perform some overprinting on an existing PDF and I need to know the x,y,w,h on where I am supposed to write the texts.
It seems that Preview.app on Mac has this ability but so far I wasn't able to find anything on Windows that does the same.
Please do not confuse this feature with the Measuring Tools from Adobe Reader which are used to measure distance in printed construction stuff, not the PDF page itself.
It seems that the default using of measure is point, so I need something that would allow to select a rectangle and that will tell me the coordinates.
Please do not suggest on exporting as a imagine and using something else to measure the pixels on the image.
Update: http://legacy.activepdf.com/support/knowledgebase/view.cfm?tk=rl&kb=11866 -- PDF Units, that's what I am looking for, something to measure the PDF coordinates in PDF units.
Disclaimer: I work for Atalasoft.
I know you said not to suggest this, but honestly, it's the easiest approach:
If you mean "sweep out a rectangle in the UI and report the coordinates", that's pretty straight forward, but it's going to be a build-your-own type of thing. What you will need are:
A PDF rasterizer (GhostScript, Acrobat, FoxIt, Atalasoft) to get you an image at a specific resolution.
A tool to display that image in a window and let you sweep out a rectangle (this is straight forward winforms type code for .NET, but we have a control that does this out of the box - combining 1 & 2 into one step).
A tool that can look at the structure of a PDF page and report back the crop box (if any) and the media box for each page (iText, DotPdf).
A tool/understanding of matrix transformations to build the matrix that goes from display space into PDF space (and/or vice versa, probably in iText, definitely in DotPdf)
The code flow becomes something like:
For each page:
Open document, pull out crop and media box, rasterize page, build transformation matrix.
Display image, build/hook into event for selection changing.
Push the image viewer rectangle coordinates through the transformation matrix.
Profit.
From a coding point of view (assuming 0 prior knowledge of this, but a decent understanding of linear algebra), from 3 days to a 2 weeks. If I were to write it, it would probably take on the order of a few hours, but I wrote most of our PDF tools and this is pretty easy.
If your goal is to intuit where rectangles are on the page and report back those coordinates, that's also doable, but it decidedly non-trivial in comparison. You need to write code that can rip through a PDF display list and interpret the contents correctly. That means being able to handle all the cumulative matrix transformations, the graphics state changes, the gstate object use, Form XObject placement, and so on. You need to answer the question "what is a rectangle?" because in PDF placement, it could be an re operator, a set of degenerate beziers, a set of lines, an image of a rectangle or (surprise!) a combination of all of the above. Honestly, intuiting anything about the content on a PDF page is a Herculean task.
I'm writing some logic to build a large single PDF file that our users can print at their convenience. I'm using Java's iText library (through Clojure's clj-pdf).
I'm trying to have the PDF show the same exact template form on every single page, however I can't seem to find any documentation or indication that one can have PDF content "fit to a page".
The text in these forms varies a little bit, so there's a chance it might require more of fewer text lines per page. This means that the content has a chance of spilling over to the next page, or being too short, making the next page creep up into the previous one, breaking the requirement of "one form per page" for the rest of the document.
I'm trying to figure out if my option is pretty much only to manually check the length of the text on each page and potentially crop it by hand if I goes over n lines, or if the PDF format somehow supports a smart way of having paragraphs+tables+headings all fit in one page. Some UI systems allow you to control how spill-over is handled, anywhere from cropping to resizing the font, so I'm curious if PDF supports anything of that sort.
Edit: ended up going with pagebreaks for simplicity, wasn't aware of that option when I wrote this question.
If you want to take control over the space taken by text, for instance to fit it on a single page, the way to go would be to create a ColumnText object and to add the content in simulation mode. If the text fits the page, add it for real. If it doesn't, use a smaller font size. This is demonstrated in the MovieAds example where snippets of text are fitted into AcroForm fields.
I am using Tesseract 3.0 in order to read digits from a seven segment display but that did not work properly.
I assume the reason of that is the font of the seven segment display which is different from the usual one that is read.
I was wondering if there was a way to change the font so that the results are compatible with the digits found on the 7 segment display.
To optimize for certain fonts you can either train tesseract for a certain font or customize the scanning method.
There's really no telling which will be quicker without more details of the font and the environment you are sampling from.
I want to read an existing pdf & extract the text and graphics information. Within graphics, currently i just need the drawn lines. There are many vendor component for reading PDF text, but are there ones that can give graphics info too ? Though free/open-source is preferred, I'm ok to commercial ones too.
The requirement is:
For every page in PDF:
Reading text blocks
Getting to know the canvas co-ordinate of the text block (rectangle containing the block). Note, for text with higher font size, the rect size will change.
Lines - need collection of (x1,y1,x2,y2) for every line in a page in pdf
Thanks,
- Seeker
This is my field, though the question is a bit old. Hopefully this still helps.
You leave some room for assumptions, so here are mine:
you seek a script, rather than stand-alone software
your object is archival
you are running command-line scripts:
Use this command line script, detailed at: http://stefaanlippens.net/extract-images-from-pdf-documents
you are running server-side code using imagemagick or graphicsmagick functions:
Something like "convert -background white -flatten test1.pdf test1.jpg" (imagemagick) will render the whole PDF page into a jpeg. If you want to then crop it to the image(s), then it depends upon the context of the project to determine the best script(s) to do that.
A rather complex question. If you wish to provide more details about the project, then I can provide some more guidance. Best of luck.