No-cost access to the latest PDF standard: ISO 32000-2 (PDF 2.0)
pdfa.org
pdfa.org
Who would have thought that "international standards" that require payment don't work well? How many people are willing to spend a couple hundred CHFs to access the PDF specs? Also it seems insane to me that the PDF creator, Adobe, now has to pay ANSI to distribute their own spec for free.
For some reason you still need to "add to cart" the standards and they will ask you for your address and email. You don't need to provide real information for anything, not even email, they just redirect you to a page with download links.
Also the EULA is insane.
> You may install one copy of the Product on, and permit access to it by, a single computer owned, leased or otherwise controlled by you. In the event that computer becomes dysfunctional, such that you are unable to access the Product, you may transfer the Product to another computer, provided that the Product is removed from the computer from which it is transferred and the use of the Product on the replacement computer otherwise complies with the terms of this Agreement. Neither concurrent use on two or more computers nor use in a local area network or other network is permitted. You may print one copy of the Product for your personal use. You shall not merge, adapt, translate, modify, rent, lease, sell, sublicense, assign or otherwise transfer any of the Product, or remove any proprietary notice or label appearing on any of the Product. You may make one (1) copy the Product for backup purposes only.
They don't even allow you to use it on your 2 devices at the same time. Complete nonsense that I'm sure everyone will follow.
Lawyer: You must include my unenforceable EULA.
Anyone-with-a-brain: lol, no. Your "contribution" to this project only serves to do the direct opposite of our stated intent... Actually, why are you involving yourself here - are you billing for this?
Lawyer scampering noises recede into the distance
In-house counsel is a little different but again even at places like IBM the lawyers could not get away with blocking meaningful business
The minimum liability comes from doing nothing, so the default advice is "Don't."
You must be working in a very unregulated industry if that’s true!
"How do I not get sued for my new medical device?"
"Don't sell it to anybody."
More likely in your scenario is:
Lawyer: You must include this EULA that this person/board/committee demands, and will fire both of us if you don't, because they asked me how to cover their asses in case of XYZ.
Anyone-with-a-brain: okay.
Lawyers themselves are certainly powerful, but they only really derive power from people with real power; states, boards of directors, judges, etc.
maybe if more things move online, if they face some serious competition, then they might start thinking about these as potential UX issues
In many environments there are requirements to be standards-compliant. Buying the standard is a prove of compliance. (Turn it around: "you didn't even obtain the standard! How could your product be compliant?")
This is of course mostly relevant for engineering. Less so in IT, but even IT standards compliance is sometimes part of government contracts. At least for language compilers.
And yes, nobody will be able to verify the compliance, but commercial vendors document how well they comply to the standard and that limits the liability.
ISO 18013-5 and co.
Same for (a lot of) science..
You pay taxes to build universities, you pay taxes for professors and other educators paychecks, you pay taxes for research grants, and all that money from you is than used to 'discover' something, but you need to pay some private company to actually read the article.
It's slowly changing, but still, a lot of science, for "poor people", is only available on pirate sites.
Who says that they don't work well?
All of the manufactured goods that you own, and how they got transported (e.g., shipping containers, boats, fuel for boats, etc) are probably based a dozens of ISO (and ANSI, SAE, etc) standards that had to be paid for.
It's been the norm for about a century and helped build the modern world. See Engineering rules: global standard setting since 1880 by Yates and Murphy for a history. There are some good lectures by them online as well:
A more reasonable model these days would probably be a per-seat license for an entire segment of the ISO library. As it is, I don’t even know if a given standard would actually be useful to have for my work, companies need to decide which employee(s) to license a copy for etc…
* I’m surprised it’s not billed in special drawing rights.
When Apple eventually changed their implementation to be consistent with Adobe's, I gave up all further attempts as a waste of time.
My errata document is available under a $5000/yr corporate subscription agreement to my personal standards and practices library. Sorry, I do not offer memberships to individuals.
So many small companies or even teams at big companies don’t know about the standards that they should follow (ISO, ASME, UL etc) or if they do they don’t want to pay for them. Then there’s the complexity of tracking licenses and copies with electronic downloads, which I promise you no one does 100% right. There are third parties who will track this for companies but I’ve never managed to get anyone to use them.
It’s hard to even get everyone I’ve worked with to follow ASME Y14.5, which is the drawing and dimensioning standard for mechanical engineering (in the US).
Part of the challenge is that so many of these standards are broken up into 50 different parts that are purchased separately. Oh, you want to know how to dimension castings, that’s a separate document. Abbreviations to use on drawings, that’s separate. Drawing formats, that’s separate. Etc.
The result is that people collect old PDFs they “found” somewhere, and no one has a complete, up to date set of standards for any field. Even if someone at a company tries to get people to pay for standards, they maybe put them on a shared drive somewhere and they aren’t properly licensed for the team.
The results are that standards aren’t known or properly followed. Which is supposedly the purpose of standards orgs, but most of them use publications as a source of income, which defeats their purpose.
There are a few standards like USB, which are free to download. This should be universal.
I've used the ISO standards to develop smart card software. Before that I'd mostly consulted IETF standards.
The IETF standards are carefully crafted, clearly written by someone with experience in developing the thing they are documenting. That's probably because it's IEFT policy to insist on working code before the standard is ratified. The approach seems to be making it possible to to develop an interoperable version with that existing code just from the published standard. Since that's inevitably what you are trying to do it's a joy to work with.
The ISO standards on the other hand come across as brain dump made to look organised by the addition of bullet points, numbered lists and a table of contents. They give no explanation on why they made the design decisions behind the standard, so you end up having to re-discover it all yourself. It takes forever.
Having to pay for the ISO standards just adds insult to injury. As I was developing something that was a one off (I later open sourced most of it), I could not justify the thousands ISO was demanding. Fortunately if you dig long and hard enough, you can find copies of most of it lying around on the web.
I am extremely skeptical that everyone who has ever designed a glass bottle cap has paid for the glass packaging neck thread specifications. I know I sure as shit didn't the last time I had to make one. Come at me, bottlecap cartel.
Sure, there is a collective cost to develop and maintain standards, but making sure that they can be openly accessed afterwards should be considered as part of this cost burden.
I really could care less if something is "the norm" when it's still obviously antithetical to it's purpose. Saying "the norm" is always, always, always a red flag phrase that something is being held very far away from a natural state of balance.
%PDF-2.0
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Anyway, I've since found an explanation in the PDF 1.7 spec. PDF files can include "file specifications" (file paths or URLs) to refer to other files. An ID can be added to a file specification for an external PDF, which the PDF reader can validate against the ID contained in the located file's trailer dictionary, to ensure that the external PDF is the expected one.
I guess "some workflows" must have gotten upset when trying to generate a link to a PDF file with no ID, so they finally required its presence in the spec.
Additionally, https://www.pdfa-inc.org/eula/ seems to indicate that you may only use the downloaded files on one computer - and does not establish a license agreement between the user and any third party IP holders.
No-cost access does not mean free-as-in-software. Caveat emptor.
Adobe has an interest for more and more people to use PDFs because more people will then buy their products.. if they're afraid of the costs, don't publish the standard and risk people switching to other stanards.
Standard is created by volunteers typically sponsored by their employer to go to standards meetings, who also pay (depending on national body) for being members.
The standard organization itself has and needs some infrastructure to exist, and that has to be paid for.
While the folks getting together creating the standards are (often) sponsored by their employer, the employer thinks this is a net benefit because they get a say in setting it, after which they can turn around and sell more product(s) based on the standard.
The standards organization themselves do not have such an option, but they still have bills to pay.
https://www.pdfa-inc.org/?download_file=2009&order=wc_order_...
Once you introduce any mildly interesting vector or typesetting feature, you will not get pixel perfection. Examples:
* You want to draw a circle. Antialiasing is desirable because jaggies look really ugly. Do you want to prescribe the exact antialiasing algorithm? What about other ones that are faster or more accurate? Which AA convolution kernel are you using - box, Gaussian, sinc?
* Which approximation algorithm will you use to draw cubic Bézier curves? I don't think there is a closed-form solution for them.
* You support affine transformations. Define a 10×10 square. Scale it by 1/100. Scale it by 100. What if, due to floating-point rounding errors, your square is now 9.999×9.999 and now renders to 9×9 pixels without antialiasing?
* You support automatic text wrapping. One renderer uses float32, looks at how wide each word is, and decides to break at some point in the sentence. Another renderer uses float64, looks at how wide each word is, and decides to break at a different point in the sentence.
I downloaded their example file and it's entirely binary, unlike PDF which is just pseudo-binary, but Evince did open it and it seems unlike PDF it's entirely raster based and would require a separate OCR layer on top of the text to make it eligible for copy-paste, if that's one of the goals
Not really all that different from PDF:
"Like PDF, DjVu can contain an OCR text layer, making it easy to perform copy and paste and text search operations." https://en.wikipedia.org/wiki/DjVu
DjVu however really does seem to be biased toward scanned-origin documents, not digitally produced ones.
That is not correct, PDF supports text spans natively; perhaps you're thinking of scanner software that merely uses PDF as a convenient packaging for their JPEGs?
I cannot defend DjVu as I've only had tangential contact with it, and for sure have never tried to author any such file. I was just raising awareness that there are competing standards that appear to be libre and are designed for pixel perfect output
You open it in Adobe™ Acrobat™ Reader, of course. The first version of the PDF Reference Manual was published to accompany the first version of Acrobat™ [0].
[0] https://opensource.adobe.com/dc-acrobat-sdk-docs/pdfstandard...
Also many PDF viewers have little to no support to javascript in PDF.
And no, the standard doesn’t concern itself with that particular behavior. Also, many PDFs “in the wild” do not fully conform to the standard, because Acrobat Reader is so lenient.
One is expected nowadays to have a pdf reader installed on your device, this is a problem in it self because most of the software short of just reading the pdf, that are "free" does not include most of the features one would come to expect to utilize the standard. Now I don't have to sign pdf's daily but when you start a new job for instance and have to sign a pdf it becomes troublesome.
As a developer the ecosystem is pretty terrible too, in order to utilize said functions such as signing you'd need to fork out a huge chunk for a subscription to some library. Don't get me wrong, paying for software I'm all for but forcing your users to pay for some third-party software to interact with your documents is not fine.
To me, this is simply disgusting that you'd have to buy into this "standard" in every aspect, both as a user and as a developer.
We've come a long way over the years of having more options to both users and developers but honestly, it's simply not enough. And pdf as a format being very complex it's more than understandable that it would be a challenge to make it more available.
I know it’s common to author in something else and then convert into the canonical XML form, but I’d be surprised if it wasn’t also common to author in the XML format. It’s not an onerous format.