How do I attach supporting PDFs to a plot, and how do I remove one?

What the appendix is for

Supporting documents your assessor wants alongside the photos — air-tightness test certificates, manufacturer datasheets, commissioning certificates, design drawings. Anything you attach here is merged into the plot's report PDF, after the photo sections, when you send.

Adding a PDF

1. Open the plot and expand Appendix: Supporting Documentation (the last section).
2. Tap Add PDF.
3. Pick the file in your phone's file picker (PDF files only, one at a time).
4. The document appears in the appendix list under its original filename.

The app stores its own copy of the file, so the attachment keeps working even if you later delete or move the original in your files app. Behind the scenes each copy gets a unique internal name — two plots can attach files that happen to share a filename (two different Air_Test.pdfs, say) without one overwriting the other; you always see the original name in the list.

Removing a PDF

1. In the appendix list, tap the bin icon next to the document.
2. Tap Yes on the "Delete File" question.

Removing is precise: only the entry you tapped goes, even if the same document appears twice in the list. Whether the stored file itself is deleted from the device depends on whether anything else still uses it:

• If no other plot in the project references the same file, the app deletes its stored copy too.
• If the file is still referenced elsewhere — or it is an older attachment from before copies were made unique, which several plots may share — the entry goes but the file stays on the device. This is deliberately conservative: a shared file is never deleted out from under another plot's evidence. It costs a little storage; it can never cost evidence.

With no signal, the entry goes and you will see "File removed — will sync when you're back online"; the removal saves when the phone reconnects. If a removal genuinely fails to save, you will see "Unable to remove the PDF. Please try again." and the entry comes back.

The safety caveat worth knowing

Appendix PDFs are the one kind of evidence with no automatic second copy: photos also land in your phone gallery, but attached PDFs exist only in the app's storage on this device until a report is sent (at which point they are inside the sent report PDF). This is one more reason for the golden rule — never uninstall the app or clear its data — and it is why the app's Clear App Data screen explicitly counts appendix PDFs in what would be lost. If a certificate matters, keep your own copy of the original file somewhere sensible too.