| Leiden | Description | EpiDoc page(s) |
| α(βγ) | Modern expansion of an abbreviation | Abbreviation fully expanded |
| [αβγ] | Text lost, restored by the editor | Restored text |
| [........] | Up to 8 characters lost, cannot be restored | Lost characters, quantity known |
| [ - ca.4 - ] | Approximate number of characters lost, cannot be restored | Lost characters, quantity approximate |
| [ - ca.9 - ] | More than 8 characters lost, cannot be restored; note: DDbDP practice assumes that assertion of losses greater than 8 characters is imprecise, whether the editor writes [..........] or [- ca.10 - ] | Lost characters, quantity known and Lost characters, quantity approximate |
| [ - ca.? - ] | Unknown number of characters lost, cannot be restored | |
| <αβγ> | Characters erroneously omitted by the scribe, added by modern editor | Supplement of omitted characters |
| \αβγ/ | Text added above the line in antiquity | Text added by ancient hand |
| /αβγ\ | Text added below the line in antiquity | Text added by ancient hand |
| {αβγ} | Superfluous letters removed by the editor | Superfluous text |
| α̣β̣γ̣ | Underdotted by editor to indicate characters ambiguous outside of context, characters damaged, illegible or otherwise uncertain | Ambiguous characters (Leiden underdot) |
| αβγ | Characters seen by a previous editor now lost, or attested in an ancient duplicate | Text visible to previous editor and Text restored from parallel copy |
| 〚αβγ〛 | Characters deleted in antiquity | Erased but legible text and Erased and lost |
| vac. | Space left empty | Vacat measured in charactrers |
| - ca.? - | Traces Illegible / vestiges | Illegible characters, quantity unknown |
| …….. | Up to 8 characters illegible | Illegible characters, quantity known |
| - ca.9 - | More than 8 characters illegible; note: DDbDP practice assumes that assertion of illegible characters of length greater than 8 is imprecise. | Illegible characters, quantity known and Illegible characters, quantity approximate |
| - ca.? - | Unknown number of characters illegible | Illegible characters, quantity unknown |
| -- -- -- -- -- -- -- | Break in papyrus/ostracon/tablet, resulting in unknown number of lost lines | Lost lines, quantity unknown and Lines possibly lost / text possibly breaks |
Table above taken from DDbDP Conventions. See also: Leiden+ Help Page.