Industry supported, open source PDF/A validation library
active 2023-08-21 → 2026-08-10 (UTC)
Activity over time
Daily event counts in the loaded window
Line chart, 1086 days from 2023-08-21 to 2026-08-10. Pushes: 687 total, peak 23 in a day. Pull requests: 157 total, peak 5 in a day. Issues: 197 total, peak 26 in a day. Comments: 358 total, peak 28 in a day. Stars: 66 total, peak 2 in a day.
- Pushes
- Pull requests
- Issues
- Comments
- Stars
Stars, PRs, issues and forks are under-captured in the later part of this window. GH Archive progressively stopped capturing non-push events during 2026 — −95% or worse by the end of the window. Every series here except Pushes fades for that reason, so a decline above reflects the archive, not this repository. Pushes stay reliable throughout, so read them, and the contributor counts derived from them, as the real signal. Data health has the measurements.
Top contributors
Pushes, PRs, issues, reviews and comments — stars and forks excluded, so this is contribution rather than popularity
| Contributor | Contributions | Pushes | PRs | Comments |
|---|---|---|---|---|
| MaximPlusov | 661 | 343 | 126 | 113 |
| github-actions[bot] | 239 | 239 | 0 | 0 |
| bdoubrov | 155 | 5 | 3 | 113 |
| nikitakovaliov92 | 68 | 41 | 9 | 9 |
| irinamavrina | 41 | 41 | 0 | 0 |
| petervwyatt | 19 | 0 | 0 | 13 |
| THausherr | 15 | 0 | 0 | 8 |
| Samyssmile | 10 | 0 | 2 | 2 |
| ceztko | 9 | 0 | 0 | 5 |
| u-fischer | 9 | 0 | 0 | 4 |
| ProxyNexus | 8 | 6 | 2 | 0 |
| LonelyMidoriya | 8 | 5 | 3 | 0 |
| carlwilson | 8 | 0 | 2 | 2 |
| e-zhavoronok | 8 | 4 | 4 | 0 |
| dependabot[bot] | 7 | 2 | 5 | 0 |
| mkl-public | 7 | 0 | 0 | 7 |
| knoami | 7 | 0 | 0 | 5 |
| pbroissiat | 6 | 0 | 0 | 4 |
| moritzfl | 6 | 0 | 0 | 4 |
| rogerk-apryse | 6 | 0 | 0 | 3 |
Recent activity
Latest issues, pull requests and releases
- Issue#1592MaximPlusov2026-05-03 20:22Including verapdf given warning on javax.xml.bind
- Issue#1592mcbeelen2026-05-03 20:10Including verapdf given warning on javax.xml.bind
- Issue#956bdoubrov2026-04-23 11:37Question: Documentation about GreenField- and/vs. PDFBox-implementation
- Issue#1589petervwyatt2026-04-22 01:31verapdf/cli Docker image reports 1.28.1 for "latest" tag, not 1.30.1
- Issue#1586Lolf10102026-04-19 12:15ModelParsingException when parsing a file that Acrobat Reader accepts
- Issue comment#1587bdoubrov2026-04-18 16:35Question about ModelParsingException
- Issue#1585wodzen2026-04-12 10:38Enable GitHub Private Vulnerability Reporting
- Pull request#1581LonelyMidoriya2026-03-20 11:25
- Pull request#1581LonelyMidoriya2026-03-20 11:25
- Issue comment#1573Reissner2026-03-01 01:43Consistency of verapdf --list
- Issue comment#1576Reissner2026-03-01 01:41Feature request on verification result.
- Issue comment#1569bdoubrov2026-02-26 13:48Feature request
- Issue comment#1576bdoubrov2026-02-26 08:21Feature request on verification result.
- Issue comment#1569Reissner2026-02-23 22:39Feature request
- Issue#1575MaximPlusov2026-02-19 08:40False positive .notdef glyph violation (6.2.11.8) for symbolic TrueType fonts with no /Encoding when char code 0 maps to a real glyph
- Issue comment#1571MaximPlusov2026-02-01 16:55Valid as PDF/A but invalid as PDF?
- Issue comment#1573bdoubrov2026-01-29 08:39Consistency of verapdf --list
- Issue comment#1572MaximPlusov2026-01-20 18:19math nested inside Formula
- Issue comment#1567MaximPlusov2026-01-20 18:19Error reported for non-embedded TRM=3-only TrueType font despite ISO 19005-1 Note A exemption
- Issue#1572MaximPlusov2026-01-20 08:04math nested inside Formula
- Issue comment#1570petervwyatt2026-01-01 06:06On a certain document, which i can prov
- Issue#1570MaximPlusov2025-12-30 06:45On a certain document, which i can prov
- Issue comment#1569bdoubrov2025-12-18 08:48Feature request
- Issue comment#1567bdoubrov2025-12-15 13:33Error reported for non-embedded TRM=3-only TrueType font despite ISO 19005-1 Note A exemption
- Issue#1553MaximPlusov2025-12-12 20:39verapdf requires Content for widget that is not in a form field and is an artifact
Totals cover only the window loaded into ClickHouse and count events, not GitHub's lifetime totals — 66 stars here means stars gained during the window, not the repo's star count.