Opera build-in save as pdf for lengthy webpage

burnout426

burnout426 Volunteer

I had just tested the PDF in Opera and Chrome. I didn't test in Adobe or Foxit or anything.

As for the version of the PDF, you can try modifying the pdf header in the file with a hex editor to see if it makes any difference in Adobe. Change it from 1.4 to 1.7 or 2.0 for example. You can try versions in between too. I don't know how much syntax changed between those versions, so you'll have to test to see if it makes Adobe happy. You also might want to generate a PDF with Adobe if you can and see what version it uses by default. I'll install Adobe later and play with it.

A Former User @Guest

@yanta said in Opera build-in save as pdf for lengthy webpage:

@jackyspeed

May I ask, what PDF readers you used?

As mentioned above, I use Sumatra PDF.

You may want to try its portable version, which doesn't modify anything outside its own folder and which runs without any installation process, just double click on the "SumatraPDF.exe"

Got it. Thanks!

A Former User @burnout426

@burnout426 said in Opera build-in save as pdf for lengthy webpage:

I had just tested the PDF in Opera and Chrome. I didn't test in Adobe or Foxit or anything.

As for the version of the PDF, you can try modifying the pdf header in the file with a hex editor to see if it makes any difference in Adobe. Change it from 1.4 to 1.7 or 2.0 for example. You can try versions in between too. I don't know how much syntax changed between those versions, so you'll have to test to see if it makes Adobe happy. You also might want to generate a PDF with Adobe if you can and see what version it uses by default. I'll install Adobe later and play with it.

Much appreciated for your suggestion. I will take a look at those file headers.

burnout426

burnout426 Volunteer

Changing the version alone in the header of the file doesn't fix the issue. Looking on the net, the issue is with Adobe and something like a 200in limit. Using pdf version 1.6 and adding/modifying some UserUnit entry to 75,000 entry is supposed to fix it. Have to investigate more. If we can find a solution, perhaps Opera could add that automatically. But, ultimately, it's an Adobe issue.

burnout426

burnout426 Volunteer

It looks like you have to add

/UserUnit value

(where value is something high)

to every obj entry in the pdf source that's out of range to get Adobe load things right. But, I have yet to confirm this as there are quote a few obj entries to modify in the file.

burnout426

burnout426 Volunteer

Hmm, actually, the /UserInit has to be in the /Page section near the end of the file.

replace_all(src, "<</Type /Page\n", "<</Type /Page\n/UserUnit 72\n");

(for example).

However, all that does is scale the font-size kind of. It doesn't get rid of the error in Adobe or anything like that. I tred a value of 75000, but that didn't do the trick. Tried 2 and 2.83 to see if that'd increase the allowed dimensions, but that again just increased the scale. There's something about /Mediabox dimensions, but I have know clue if those have to be modified too. I don't think so though.

So, I don't know. If I find any more info I'll post. For now, use a different reader.

A Former User @burnout426

@burnout426 said in Opera build-in save as pdf for lengthy webpage:

Changing the version alone in the header of the file doesn't fix the issue. Looking on the net, the issue is with Adobe and something like a 200in limit. Using pdf version 1.6 and adding/modifying some UserUnit entry to 75,000 entry is supposed to fix it. Have to investigate more. If we can find a solution, perhaps Opera could add that automatically. But, ultimately, it's an Adobe issue.

@burnout426 said in Opera build-in save as pdf for lengthy webpage:

Hmm, actually, the /UserInit has to be in the /Page section near the end of the file.
replace_all(src, "<</Type /Page\n", "<</Type /Page\n/UserUnit 72\n");
(for example).

However, all that does is scale the font-size kind of. It doesn't get rid of the error in Adobe or anything like that. I tred a value of 75000, but that didn't do the trick. Tried 2 and 2.83 to see if that'd increase the allowed dimensions, but that again just increased the scale. There's something about /Mediabox dimensions, but I have know clue if those have to be modified too. I don't think so though.

So, I don't know. If I find any more info I'll post. For now, use a different reader.

Thank you very much for the efforts you've made for this issue. Indeed, if Opera can do this modification automatically, it would be most convenient for all users. There are too many technical things after all.

A Former User @Guest

@jackyspeed said in Opera build-in save as pdf for lengthy webpage:

Indeed, if Opera can do this modification automatically, it would be most convenient for all users. There are too many technical things after all.

Yes, the question is how can we make them know about this issue, and that you are not alone in that?
I guess they are not checking every topic of this forum, and even if they found it, still they will consider it as not important/waste of time probably.

Same in my case, I found that Acrobat opens wrong the document, but it's saved as a whole and I can open in correctly in other pdf viewers.

A Former User

Thank you so much. Chrome was opening PDFs and then something happened and it stopped. I'm a teacher. I really needed this for lesson development. I followed your directions. Now all is well. Thanks again

A Former User @Guest

I have exactly the same problem as @jackyspeed, using Opera 54.0. However I had this issue since it was introduced.

Have tried it on several computers and the problem persist. Environment is:

Windows 10 (several versions)
Opera (several versions)
Adobe Acrobat Reader (several versions)

Print to PDF always works, with the limitation of not retaining page layout.

Save to PDF works for short web pages only and fails to save the entire page on long pages (please try pages that at least 24 pages long.

leocg

leocg Moderator Volunteer @Guest

What about Opera 55, the latest stable version?