Maximum supported file size
Most uploads in Sessionboard accept files up to 5 GB. The size submitters are told on a form, and the size a given uploader will enforce, depend on where the file is collected.
Submission-form file questions
Section titled “Submission-form file questions”On a session submission form, Customize Question → Maximum file size is the size advertised under the field (for example “Images only (up to 2 MB)”). Leave it blank to inherit the field default, up to 5 GB. Session Files settings and speaker headshot limitations do not change that hint.
On Headshot and Logo, Help Text you write is the only line under the field. Other file fields still show the type-and-size hint even when they also have help text.
SVG and HTML files are not accepted here — the file picker does not offer them, and an upload of either type is rejected. See Where SVG and HTML are blocked below.
Restrict a file question to certain file types
Section titled “Restrict a file question to certain file types”Customize Question > Accepted file types limits a file question to the formats you want. Tick any of PDF, PPT, Image, Video, Audio, Word, Excel, ZIP, PNG, JPEG, GIF, or MP4. On a Headshot question the choices are only Image, PNG, JPEG, and GIF — you can narrow a headshot to, say, PNG only, but not widen it to other formats. Leave every box unticked to accept anything — that is the default, and it is what a question with no list set keeps doing.
The same control sits on a global field in the field library’s Edit Field panel, and both write the same setting. Either way, submitters see the accepted types in the hint under the field and their file picker filters to them.
The list applies to awards entries too, on the public awards form and in the organization portal alike.
Sessionboard reads the file’s contents, not just its name. Renaming a JPEG to entry.pdf does not get it past a PDF-only question — the upload is rejected, and the message says what the file actually is.
A few formats can’t be identified from their contents. Word, Excel, PowerPoint, and ZIP files share one container format underneath, and plain text and CSV have no signature at all, so for those the file extension is what gets checked.
SVG is not offered as an accepted type, because SVG and HTML stay blocked on submitter-facing forms — see Where SVG and HTML are blocked.
Headshots and logos
Section titled “Headshots and logos”Participant headshot limitations and the matching logo controls live in Settings → Record Settings. When Limit file size is on, the photo editor refuses files over the cap you set (10 KB to 5 GB). When that limit is off, the editor uses the 5 GB platform ceiling.
Those event limits do not rewrite the form hint. A blank Maximum file size still reads “up to 5 GB” even if Record Settings has a tighter cap.
Session Files
Section titled “Session Files”Presentations and other session content collected under Program settings → Files accept up to 5 GB per file. Turn on Enable Size Limits there to set a lower cap (in KB, MB, or GB) that the portal enforces on upload. That setting does not apply to file questions on a submission form. See Enable, upload, & download files.
Where SVG and HTML are blocked
Section titled “Where SVG and HTML are blocked”SVG and HTML are script-bearing documents, so Sessionboard rejects them on the upload surfaces where one person submits a file that other people are later invited to open:
- Session submission forms — file questions on a call-for-papers or session submission form.
- Awards submissions — file fields on an awards entry, both on the public form and in the organization portal.
- The session Files tab in the speaker portal — every upload made there, including by an event admin viewing the portal. Admins who need to attach an SVG, such as an event logo, can do it from the session’s Files drawer in the admin app, which is deliberately exempt.
On those surfaces the check reads the file’s actual content rather than trusting its name, so renaming an SVG or HTML file to another extension does not get it through.
Branding and asset uploads — event and organization logos, headshots, and similar — accept SVG on purpose. Any SVG that Sessionboard stores has scripts stripped out of it first.
File requests and other uploads
Section titled “File requests and other uploads”File requests and most other content uploads accept files up to 5 GB. Event admins can set a lower maximum for some of those uploads in Settings → Record Settings.
Acceptable file types include Word, Excel, PowerPoint, PDF, image, video, and audio — unless the field or event setting narrows the list.