Pdf can support page sizes up to miles long or wide.... (although this is slightly absurd, but yes, MILES long!) but if you create a large page in InDesign you are met with a lovely error message when you come to export. Larger page sizes would be beneficial for lots of reasons, app prototyping, print, really long articles and pictures of Giraffes ;-)

Seriously though, please oh wise Adobe can you increase this limitation to a more reasonable number, Thank-you.

Bob

Some vendors require more than 1" of bleed, especially on larger format layouts.
Currently have to build layouts at reduced size to accomplish this.

Please allow users to password protect PDF-export settings, preventing unauthorized changes. Read/View only acces should be possible

Without a lot of expensive coding, could you add a button for "CURRENT PAGE" in the dialog box for export PDF? It would be a lot quicker than having to enter the page number every time you want to export each page separately.
E.G.
In Pages section
ALL
CURRENT PAGE
RANGE

Allow administrators to setup Indesign, restricting/forcing users to only be able to use predefined PDF-export presets, without the option to deviate from these settings

Administrators should be able to disable PDF-export overrides. By doing this, during the export pdf process, users should only be able to select a PDF-export preset, but not be able to change the predefined settings.

Form fields tags aren't exporting properly for tagged pdfs in the newest Indesign (13.0.1). The tags won't show up in the file therefore not allowing the pdfs to pass the accessibility checker. The only work around I'm finding is to re-install the 2017 CC, save the files out as an idml and reopen and export from there. There are no issues when exporting as tagged pdf from the 2017 CC.

The Shutterstock plugin is a great tool for easy access to the image database. Drag and drop the desirable picture into the lay-out.
It would help if watermark pictures would be detected while exporting to pdf.

There is no auto work around save multiple pages as a layout in PDF.

Please add an option to export ranges of pages as single page PDF files from Indesign like Illustrator(save individual artboards). This would simplfy sending pages to assembly station for imposition and corrections afterward.

Until now, coming from CS2, Indesign was not able to store the security settings in a PDF export profile. Every time when exporting a PDF I have to set these settings manually, plus the password. I know I could do that in Acrobat with an action, but that's only worth doing when exporting more than two files at once. The same PDF profiles could also be used by Distiller when converting EPS to PDF by drag 'n drop, so the target PDF would always be password protected. I call this automation.

In Acrobat it is possible to set up simple math formulas such that when a user fills in a box, it auto fills some other boxes. Why can't I just do that in InDesign?

Absatzformate in Textfeldern (für Interaktives PDF) bereits im InDesign festlegen können und nach Export als Interaktives PDF auch erhalten bleiben.
Evtl. für nächste Version?

Unfortunately InDesign remembers page range setting even when changing PDF preset from dropdown list in Export dialog. It would be awesome for page range to reset to 'all' when choosing another PDF export preset. I don't always remember check the range and have to do the pdf file twice. Not the major problem, but a little improvement :)

activándola funcionalmete al cien por ciento

PDF features - The text box in indesign cannot have the option of a "comb of characters". Also can we maybe be able to format these text boxes in InDesign rather than having to do it in Adobe Acrobat Pro.