PDF Annotation
Maintained by
Tim Schroeder, Amrita Deb Dutta, Bernd Decker
The PDF annotator allows students to insert questions, comments and remarks on learning materials in PDF format
directly into the document. Since all students, lecturers and tutors can read and answer the questions and
comments asked, it is made easier to clarify open questions on lecture slides, scripts and other PDF learning
materials quickly and in a concrete context.
Stats
Installations
Number of sites this plugin is installed on: 2,705
| Number of sites | |
|---|---|
| 2018-06 | 15 |
| 2018-07 | 16 |
| 2018-08 | 14 |
| 2018-09 | 17 |
| 2018-10 | 15 |
| 2018-11 | 17 |
| 2018-12 | 17 |
| 2019-01 | 20 |
| 2019-02 | 23 |
| 2019-03 | 20 |
| 2019-04 | 25 |
| 2019-05 | 19 |
| 2019-06 | 19 |
| 2019-07 | 42 |
| 2019-08 | 78 |
| 2019-09 | 102 |
| 2019-10 | 139 |
| 2019-11 | 172 |
| 2019-12 | 179 |
| 2020-01 | 208 |
| 2020-02 | 250 |
| 2020-03 | 1,037 |
| 2020-04 | 1,071 |
| 2020-05 | 468 |
| 2020-06 | 560 |
| 2020-07 | 636 |
| 2020-08 | 740 |
| 2020-09 | 882 |
| 2020-10 | 976 |
| 2020-11 | 1,122 |
| 2020-12 | 1,437 |
| 2021-01 | 1,514 |
| 2021-02 | 1,522 |
| 2021-03 | 1,581 |
| 2021-04 | 1,574 |
| 2021-05 | 1,745 |
| 2021-06 | 1,830 |
| 2021-07 | 1,766 |
| 2021-08 | 1,776 |
| 2021-09 | 1,861 |
| 2021-10 | 1,870 |
| 2021-11 | 1,889 |
| 2021-12 | 1,925 |
| 2022-01 | 1,935 |
| 2022-02 | 1,930 |
| 2022-03 | 1,983 |
| 2022-04 | 2,001 |
| 2022-05 | 2,050 |
| 2022-06 | 2,307 |
| 2022-07 | 2,193 |
| 2022-08 | 2,423 |
| 2022-09 | 2,242 |
| 2022-10 | 2,233 |
| 2022-11 | 2,248 |
| 2022-12 | 2,359 |
| 2023-01 | 2,371 |
| 2023-02 | 2,358 |
| 2023-03 | 2,433 |
| 2023-04 | 2,391 |
| 2023-05 | 2,459 |
| 2023-06 | 2,670 |
| 2023-07 | 2,610 |
| 2023-08 | 2,650 |
| 2023-09 | 2,592 |
| 2023-10 | 2,661 |
| 2023-11 | 2,556 |
| 2023-12 | 2,588 |
| 2024-01 | 2,478 |
| 2024-02 | 2,461 |
| 2024-03 | 2,453 |
| 2024-04 | 2,467 |
| 2024-05 | 2,483 |
| 2024-06 | 2,403 |
| 2024-07 | 2,497 |
| 2024-08 | 2,525 |
| 2024-09 | 2,556 |
| 2024-10 | 2,541 |
| 2024-11 | 2,414 |
| 2024-12 | 2,440 |
| 2025-01 | 2,449 |
| 2025-02 | 2,540 |
| 2025-03 | 2,562 |
| 2025-04 | 2,581 |
| 2025-05 | 2,588 |
| 2025-06 | 2,556 |
| 2025-07 | 2,641 |
| 2025-08 | 2,803 |
| 2025-09 | 2,722 |
| 2025-10 | 2,768 |
| 2025-11 | 2,669 |
| 2025-12 | 2,663 |
| 2026-01 | 2,685 |
| 2026-02 | 2,698 |
| 2026-03 | 2,699 |
| 2026-04 | 2,675 |
| 2026-05 | 2,662 |
| 2026-06 | 2,705 |
Number of sites this plugin is installed on (by Moodle version):
| Number of sites | |
|---|---|
| 5.3 | 3 |
| 5.2 | 124 |
| 5.1 | 211 |
| 5.0 | 278 |
| 4.5 | 919 |
| 4.4 | 93 |
| 4.3 | 80 |
| 4.2 | 60 |
| 4.1 | 559 |
| 4.0 | 112 |
| 3.9 | 79 |
| 3.8 | 27 |
| 3.7 | 7 |
| 3.6 | 11 |
| 3.5 | 8 |
| 3.4 | 3 |
| 3.2 | 1 |
| 3.11 | 103 |
| 3.10 | 27 |
Downloads
Total downloads in last 90 days: 639
Monthly downloads:
| Downloads | |
|---|---|
| 2025-07 | 405 |
| 2025-08 | 361 |
| 2025-09 | 335 |
| 2025-10 | 296 |
| 2025-11 | 330 |
| 2025-12 | 269 |
| 2026-01 | 286 |
| 2026-02 | 219 |
| 2026-03 | 203 |
| 2026-04 | 176 |
| 2026-05 | 182 |
| 2026-06 | 222 |
Version downloads (by month):
| PDF Annotator v1.4 release 2 | PDF Annotator v1.4 release 7.2 for Moodle 3.10 | PDF Annotator v1.5 release 5 | PDF Annotator v1.5 release 8 | PDF Annotator v1.5 release 9 Release Candidate | PDF Annotator v1.5 release 9 | |
|---|---|---|---|---|---|---|
| Jul 2025 | 7 | 9 | 19 | 47 | 153 | 0 |
| Aug 2025 | 0 | 1 | 15 | 31 | 212 | 0 |
| Sep 2025 | 2 | 3 | 6 | 25 | 124 | 145 |
| Oct 2025 | 1 | 2 | 5 | 19 | 54 | 203 |
| Nov 2025 | 2 | 2 | 27 | 16 | 33 | 216 |
| Dec 2025 | 0 | 2 | 7 | 11 | 35 | 201 |
| Jan 2026 | 4 | 9 | 11 | 20 | 6 | 188 |
| Feb 2026 | 3 | 2 | 6 | 10 | 12 | 153 |
| Mar 2026 | 1 | 1 | 4 | 7 | 8 | 164 |
| Apr 2026 | 1 | 0 | 9 | 8 | 4 | 144 |
| May 2026 | 0 | 3 | 4 | 7 | 26 | 129 |
| Jun 2026 | 5 | 2 | 7 | 15 | 7 | 156 |