mozilla / pdf.js
File Change Frequency

File change frequency (churn) shows the distribution of file updates (days with at least one commit).

Overview
File Change Frequency Overall
  • There are 400 files with 168,422 lines of code.
    • 57 files changed more than 100 times (60,931 lines of code)
    • 38 files changed 51-100 times (16,850 lines of code)
    • 108 files changed 21-50 times (50,011 lines of code)
    • 149 files changed 6-20 times (35,872 lines of code)
    • 48 files changed 1-5 times (4,758 lines of code)
36% | 10% | 29% | 21% | 2%
Legend:
101+
51-100
21-50
6-20
1-5

explore: grouped by folders | grouped by update frequency | data
Contributors Count Frequency Overall
  • There are 400 files with 168,422 lines of code.
    • 8 files changed by more than 25 contributors (15,045 lines of code)
    • 41 files changed by 11-25 contributors (34,434 lines of code)
    • 59 files changed by 6-10 contributors (27,890 lines of code)
    • 281 files changed by 2-5 contributors (89,458 lines of code)
    • 11 files changed by 1 contributor (1,595 lines of code)
8% | 20% | 16% | 53% | <1%
Legend:
26+
11-25
6-10
2-5
1

explore: grouped by folders | grouped by contributors count | data
File Change Frequency per File Extension
js, ftl, svg, mjs, css, html, md, yaml, json, gitignore, gitattributes, txt, ts, stylelintignore, editorconfig, njk, prettierignore
File Change Frequency per Extension
The number of recorded file updates
101+
51-100
21-50
6-20
1-5
js47% | 14% | 19% | 15% | 3%
css57% | 6% | 5% | 30% | 0%
mjs69% | 0% | 13% | 0% | 17%
html72% | 8% | <1% | 19% | 0%
ftl0% | 0% | 62% | 37% | 0%
File Change Frequency per Logical Decomposition
primary
primary (file change frequency)
The number of recorded file updates
101+
51-100
21-50
6-20
1-5
src45% | 14% | 21% | 14% | 3%
web58% | 11% | 6% | 19% | 3%
ROOT84% | 0% | 15% | 0% | 0%
extensions0% | 21% | 51% | 25% | <1%
l10n0% | 0% | 62% | 37% | 0%
Most Frequently Changed Files (Top 50)

See data for all files...

File# lines# unitscreatedlast modified# changes
(days)		# contributorsfirst
contributor		latest
contributor
viewer.js
in web
 278 2 2011-07-05 2025-02-14 833 83 async.processingjs@yahoo.com calixte.denizet@gmail.com
api.js
in src/display
 2198 135 2013-08-12 2025-04-13 799 50 brendan.dahl@gmail.com jonas.jenwald@gmail.com
app.js
in web
 2493 88 2016-01-23 2025-05-09 796 39 jonas.jenwald@gmail.com calixte.denizet@gmail.com
evaluator.js
in src/core
 4437 89 2013-08-12 2025-04-23 700 33 brendan.dahl@gmail.com jonas.jenwald@gmail.com
1362 - 2011-07-05 2025-04-23 540 61 async.processingjs@yahoo.com jonas.jenwald@gmail.com
710 - 2011-07-05 2025-03-19 510 53 async.processingjs@yahoo.com jonas.jenwald@gmail.com
util.js
in src/shared
 1113 55 2013-08-12 2025-05-01 491 31 brendan.dahl@gmail.com jonas.jenwald@gmail.com
fonts.js
in src/core
 2995 77 2013-08-12 2025-04-11 482 23 brendan.dahl@gmail.com jonas.jenwald@gmail.com
annotation.js
in src/core
 4089 126 2014-06-17 2025-05-10 481 22 ydelendik@mozilla.com calixte.denizet@gmail.com
canvas.js
in src/display
 2454 126 2013-06-30 2025-04-05 401 36 mitar.git@tnode.com jonas.jenwald@gmail.com
895 16 2014-09-27 2025-05-09 390 24 ydelendik@mozilla.com calixte.denizet@gmail.com
worker.js
in src/core
 719 25 2013-08-12 2025-05-04 382 21 brendan.dahl@gmail.com timvandermeij@gmail.com
document.js
in src/core
 1622 62 2015-11-21 2025-05-09 363 11 ydelendik@mozilla.com calixte.denizet@gmail.com
annotation_layer.js
in src/display
 2740 125 2015-11-21 2025-02-11 358 21 ydelendik@mozilla.com jonas.jenwald@gmail.com
1929 72 2014-09-13 2025-05-09 293 16 ydelendik@mozilla.com calixte.denizet@gmail.com
582 31 2013-06-18 2025-03-06 275 22 vivin.paliath@gmail.com jonas.jenwald@gmail.com
554 7 2018-02-17 2025-05-09 220 12 jonas.jenwald@gmail.com calixte.denizet@gmail.com
pdf.js
in src
 173 - 2011-10-24 2025-04-26 219 23 arturadib@gmail.com timvandermeij@gmail.com
507 33 2012-08-01 2025-02-24 211 17 brendan.dahl@gmail.com calixte.denizet@gmail.com
parser.js
in src/core
 1187 29 2013-08-12 2025-03-12 201 16 brendan.dahl@gmail.com jonas.jenwald@gmail.com
813 10 2013-06-18 2025-04-24 187 23 vivin.paliath@gmail.com calixte.denizet@gmail.com
225 4 2013-06-18 2025-04-08 178 23 vivin.paliath@gmail.com jonas.jenwald@gmail.com
display_utils.js
in src/display
 634 30 2019-02-23 2025-05-10 172 6 jonas.jenwald@gmail.com jonas.jenwald@gmail.com
mjs
 2330 - 2022-01-19 2025-04-26 171 9 jonas.jenwald@gmail.com timvandermeij@gmail.com
text_layer.js
in src/display
 376 11 2015-11-10 2025-03-12 167 18 ydelendik@mozilla.com jonas.jenwald@gmail.com
image.js
in src/core
 914 13 2013-08-12 2025-05-05 153 15 brendan.dahl@gmail.com calixte.denizet@gmail.com
editor.js
in src/display/editor
 1438 86 2022-06-01 2025-03-24 153 5 calixte.denizet@gmail.com jonas.jenwald@gmail.com
tools.js
in src/display/editor
 1896 120 2022-06-01 2025-04-10 148 7 calixte.denizet@gmail.com calixte.denizet@gmail.com
font_loader.js
in src/display
 353 19 2013-08-12 2025-02-26 140 14 brendan.dahl@gmail.com jonas.jenwald@gmail.com
stream.js
in src/core
 70 11 2013-08-12 2022-04-29 138 18 brendan.dahl@gmail.com jonas.jenwald@gmail.com
350 17 2015-04-27 2025-03-02 137 7 ydelendik@mozilla.com timvandermeij@gmail.com
catalog.js
in src/core
 1481 53 2021-04-13 2025-05-10 135 7 timvandermeij@gmail.com jonas.jenwald@gmail.com
1159 - 2022-06-01 2025-04-23 134 4 calixte.denizet@gmail.com jonas.jenwald@gmail.com
jpg.js
in src/core
 1288 38 2014-03-27 2025-03-17 134 13 thorbenb@opera.com jonas.jenwald@gmail.com
284 27 2013-08-13 2025-02-14 133 11 gwnrob@gmail.com calixte.denizet@gmail.com
55 18 2014-09-20 2024-08-02 129 9 ydelendik@mozilla.com jonas.jenwald@gmail.com
annotation_editor_layer.js
in src/display/editor
 677 50 2022-06-01 2025-02-18 123 5 calixte.denizet@gmail.com calixte.denizet@gmail.com
jpx.js
in src/core
 157 5 2013-08-12 2025-05-05 122 21 brendan.dahl@gmail.com calixte.denizet@gmail.com
pattern_helper.js
in src/display
 611 21 2014-01-25 2025-04-04 120 13 ydelendik@mozilla.com calixte.denizet@gmail.com
pattern.js
in src/core
 900 24 2014-01-25 2025-04-08 120 14 ydelendik@mozilla.com jonas.jenwald@gmail.com
437 30 2013-08-12 2025-03-02 119 12 brendan.dahl@gmail.com jonas.jenwald@gmail.com
316 - 2015-12-17 2025-04-27 118 11 jonas.jenwald@gmail.com timvandermeij@gmail.com
341 11 2015-01-24 2025-03-15 118 10 jonas.jenwald@gmail.com jonas.jenwald@gmail.com
colorspace.js
in src/core
 1022 51 2014-03-17 2025-04-09 118 13 kkujala@com jonas.jenwald@gmail.com
498 15 2013-07-18 2025-04-26 116 9 ydelendik@mozilla.com timvandermeij@gmail.com
core_utils.js
in src/core
 575 37 2019-02-23 2025-05-01 111 5 jonas.jenwald@gmail.com jonas.jenwald@gmail.com
template.js
in src/core/xfa
 5416 129 2021-02-01 2025-05-04 110 9 calixte.denizet@gmail.com timvandermeij@gmail.com
308 21 2016-10-08 2025-02-17 109 11 ydelendik@mozilla.com jonas.jenwald@gmail.com
295 10 2016-11-18 2025-01-30 108 6 ydelendik@mozilla.com calixte.denizet@gmail.com
229 8 2013-09-04 2024-09-28 106 13 brendan.dahl@gmail.com jonas.jenwald@gmail.com
Files With Most Contributors (Top 50)
Based on the number of unique email addresses found in commits.

See data for all files...

File# lines# unitscreatedlast modified# changes
(days)		# contributorsfirst
contributor		latest
contributor
viewer.js
in web
 278 2 2011-07-05 2025-02-14 833 83 async.processingjs@yahoo.com calixte.denizet@gmail.com
1362 - 2011-07-05 2025-04-23 540 61 async.processingjs@yahoo.com jonas.jenwald@gmail.com
710 - 2011-07-05 2025-03-19 510 53 async.processingjs@yahoo.com jonas.jenwald@gmail.com
api.js
in src/display
 2198 135 2013-08-12 2025-04-13 799 50 brendan.dahl@gmail.com jonas.jenwald@gmail.com
app.js
in web
 2493 88 2016-01-23 2025-05-09 796 39 jonas.jenwald@gmail.com calixte.denizet@gmail.com
canvas.js
in src/display
 2454 126 2013-06-30 2025-04-05 401 36 mitar.git@tnode.com jonas.jenwald@gmail.com
evaluator.js
in src/core
 4437 89 2013-08-12 2025-04-23 700 33 brendan.dahl@gmail.com jonas.jenwald@gmail.com
util.js
in src/shared
 1113 55 2013-08-12 2025-05-01 491 31 brendan.dahl@gmail.com jonas.jenwald@gmail.com
895 16 2014-09-27 2025-05-09 390 24 ydelendik@mozilla.com calixte.denizet@gmail.com
fonts.js
in src/core
 2995 77 2013-08-12 2025-04-11 482 23 brendan.dahl@gmail.com jonas.jenwald@gmail.com
pdf.js
in src
 173 - 2011-10-24 2025-04-26 219 23 arturadib@gmail.com timvandermeij@gmail.com
813 10 2013-06-18 2025-04-24 187 23 vivin.paliath@gmail.com calixte.denizet@gmail.com
225 4 2013-06-18 2025-04-08 178 23 vivin.paliath@gmail.com jonas.jenwald@gmail.com
annotation.js
in src/core
 4089 126 2014-06-17 2025-05-10 481 22 ydelendik@mozilla.com calixte.denizet@gmail.com
582 31 2013-06-18 2025-03-06 275 22 vivin.paliath@gmail.com jonas.jenwald@gmail.com
worker.js
in src/core
 719 25 2013-08-12 2025-05-04 382 21 brendan.dahl@gmail.com timvandermeij@gmail.com
annotation_layer.js
in src/display
 2740 125 2015-11-21 2025-02-11 358 21 ydelendik@mozilla.com jonas.jenwald@gmail.com
jpx.js
in src/core
 157 5 2013-08-12 2025-05-05 122 21 brendan.dahl@gmail.com calixte.denizet@gmail.com
text_layer.js
in src/display
 376 11 2015-11-10 2025-03-12 167 18 ydelendik@mozilla.com jonas.jenwald@gmail.com
stream.js
in src/core
 70 11 2013-08-12 2022-04-29 138 18 brendan.dahl@gmail.com jonas.jenwald@gmail.com
507 33 2012-08-01 2025-02-24 211 17 brendan.dahl@gmail.com calixte.denizet@gmail.com
jbig2.js
in src/core
 2340 69 2013-08-12 2025-03-02 90 17 brendan.dahl@gmail.com jonas.jenwald@gmail.com
1929 72 2014-09-13 2025-05-09 293 16 ydelendik@mozilla.com calixte.denizet@gmail.com
parser.js
in src/core
 1187 29 2013-08-12 2025-03-12 201 16 brendan.dahl@gmail.com jonas.jenwald@gmail.com
image.js
in src/core
 914 13 2013-08-12 2025-05-05 153 15 brendan.dahl@gmail.com calixte.denizet@gmail.com
crypto.js
in src/core
 1062 34 2013-08-12 2025-03-23 98 15 brendan.dahl@gmail.com jonas.jenwald@gmail.com
font_loader.js
in src/display
 353 19 2013-08-12 2025-02-26 140 14 brendan.dahl@gmail.com jonas.jenwald@gmail.com
pattern.js
in src/core
 900 24 2014-01-25 2025-04-08 120 14 ydelendik@mozilla.com jonas.jenwald@gmail.com
pdf_manager.js
in src/core
 165 26 2013-08-12 2025-05-04 105 14 brendan.dahl@gmail.com timvandermeij@gmail.com
jpg.js
in src/core
 1288 38 2014-03-27 2025-03-17 134 13 thorbenb@opera.com jonas.jenwald@gmail.com
pattern_helper.js
in src/display
 611 21 2014-01-25 2025-04-04 120 13 ydelendik@mozilla.com calixte.denizet@gmail.com
colorspace.js
in src/core
 1022 51 2014-03-17 2025-04-09 118 13 kkujala@com jonas.jenwald@gmail.com
229 8 2013-09-04 2024-09-28 106 13 brendan.dahl@gmail.com jonas.jenwald@gmail.com
162 8 2013-06-18 2024-12-06 90 13 vivin.paliath@gmail.com jonas.jenwald@gmail.com
font_renderer.js
in src/core
 850 32 2013-08-19 2025-04-17 87 13 brendan.dahl@gmail.com calixte.denizet@gmail.com
2 - 2011-10-26 2023-10-19 24 13 arturadib@gmail.com calixte.denizet@gmail.com
554 7 2018-02-17 2025-05-09 220 12 jonas.jenwald@gmail.com calixte.denizet@gmail.com
437 30 2013-08-12 2025-03-02 119 12 brendan.dahl@gmail.com jonas.jenwald@gmail.com
164 - 2014-09-30 2025-04-23 104 12 jonas.jenwald@gmail.com jonas.jenwald@gmail.com
document.js
in src/core
 1622 62 2015-11-21 2025-05-09 363 11 ydelendik@mozilla.com calixte.denizet@gmail.com
284 27 2013-08-13 2025-02-14 133 11 gwnrob@gmail.com calixte.denizet@gmail.com
316 - 2015-12-17 2025-04-27 118 11 jonas.jenwald@gmail.com timvandermeij@gmail.com
308 21 2016-10-08 2025-02-17 109 11 ydelendik@mozilla.com jonas.jenwald@gmail.com
228 8 2015-12-17 2025-02-19 105 11 timvandermeij@gmail.com jonas.jenwald@gmail.com
224 8 2015-01-24 2025-03-10 103 11 jonas.jenwald@gmail.com jonas.jenwald@gmail.com
function.js
in src/core
 1003 48 2014-05-21 2025-03-09 100 11 ydelendik@mozilla.com timvandermeij@gmail.com
cff_parser.js
in src/core
 1715 74 2016-03-31 2025-04-25 86 11 jonas.jenwald@gmail.com calixte.denizet@gmail.com
node_stream.js
in src/display
 223 22 2017-07-13 2025-01-16 75 11 mkmishra1895@gmail.com jonas.jenwald@gmail.com
1 - 2012-01-24 2023-10-07 25 11 brendan.dahl@gmail.com timvandermeij@gmail.com
341 11 2015-01-24 2025-03-15 118 10 jonas.jenwald@gmail.com jonas.jenwald@gmail.com
Files With Least Contributors (Top 50)
Based on the number of unique email addresses found in commits.

See data for all files...

File# lines# unitscreatedlast modified# changes
(days)		# contributorsfirst
contributor		latest
contributor
signaturedraw.js
in src/display/editor/drawers
 659 5 2025-01-17 2025-02-14 8 1 calixte.denizet@gmail.com calixte.denizet@gmail.com
locale_set.js
in src/core/xfa
 277 48 2021-02-10 2021-02-10 1 1 cdenizet@mozilla.com cdenizet@mozilla.com
connection_set.js
in src/core/xfa
 160 24 2021-02-11 2021-02-11 1 1 cdenizet@mozilla.com cdenizet@mozilla.com
symbol_utils.js
in src/core/xfa
 138 - 2023-06-02 2023-06-04 2 1 jonas.jenwald@gmail.com jonas.jenwald@gmail.com
image_utils.js
in src/shared
 105 4 2022-04-06 2024-11-24 6 1 calixte.denizet@gmail.com calixte.denizet@gmail.com
95 - 2023-11-17 2024-11-28 13 1 calixte.denizet@gmail.com calixte.denizet@gmail.com
outline.js
in src/display/editor/drawers
 75 10 2024-10-28 2024-12-02 8 1 calixte.denizet@gmail.com calixte.denizet@gmail.com
wasm_factory.js
in src/display
 35 4 2025-01-15 2025-01-16 2 1 calixte.denizet@gmail.com calixte.denizet@gmail.com
stylesheet.js
in src/core/xfa
 20 2 2021-02-11 2021-02-11 1 1 cdenizet@mozilla.com cdenizet@mozilla.com
signature.js
in src/core/xfa
 20 2 2021-02-11 2021-02-11 1 1 cdenizet@mozilla.com cdenizet@mozilla.com
contour.js
in src/display/editor/drawers
 11 1 2025-01-17 2025-01-30 2 1 calixte.denizet@gmail.com calixte.denizet@gmail.com
926 7 2025-02-03 2025-03-27 20 2 calixte.denizet@gmail.com calixte.denizet@gmail.com
inkdraw.js
in src/display/editor/drawers
 751 32 2024-11-20 2025-03-24 12 2 calixte.denizet@gmail.com jonas.jenwald@gmail.com
freedraw.js
in src/display/editor/drawers
 540 12 2024-10-28 2025-03-24 6 2 calixte.denizet@gmail.com jonas.jenwald@gmail.com
viewer.ftl
in l10n/ml
 457 - 2025-03-05 2025-05-08 6 2 jonas.jenwald@gmail.com jonas.jenwald@gmail.com
352 17 2025-03-08 2025-03-09 2 2 jonas.jenwald@gmail.com timvandermeij@gmail.com
type1_font.js
in src/core
 329 12 2021-05-02 2023-06-15 10 2 jonas.jenwald@gmail.com jonas.jenwald@gmail.com
binary_cmap.js
in src/core
 286 13 2023-04-21 2023-04-22 2 2 jonas.jenwald@gmail.com timvandermeij@gmail.com
filter_factory.js
in src/display
 281 11 2024-11-01 2025-04-26 5 2 jonas.jenwald@gmail.com timvandermeij@gmail.com
alt_text.js
in src/display/editor
 275 15 2023-11-24 2025-03-13 21 2 calixte.denizet@gmail.com calixte.denizet@gmail.com
270 2 2024-02-01 2024-10-02 5 2 calixte.denizet@gmail.com jonas.jenwald@gmail.com
image_utils.js
in src/core
 264 24 2019-02-25 2025-03-01 55 2 jonas.jenwald@gmail.com jonas.jenwald@gmail.com
highlight.js
in src/display/editor/drawers
 238 4 2024-10-28 2025-03-24 6 2 calixte.denizet@gmail.com jonas.jenwald@gmail.com
toolbar.js
in src/display/editor
 206 13 2023-11-08 2025-02-14 27 2 calixte.denizet@gmail.com calixte.denizet@gmail.com
170 - 2024-03-06 2025-04-23 8 2 calixte.denizet@gmail.com jonas.jenwald@gmail.com
touch_manager.js
in src/display
 159 1 2024-12-11 2025-04-10 7 2 calixte.denizet@gmail.com calixte.denizet@gmail.com
print_params.js
in src/scripting_api
 130 1 2020-11-05 2020-11-10 2 2 calixte.denizet@gmail.com cdenizet@mozilla.com
121 8 2025-03-08 2025-03-09 2 2 jonas.jenwald@gmail.com timvandermeij@gmail.com
110 6 2021-02-16 2023-03-23 4 2 jonas.jenwald@gmail.com jonas.jenwald@gmail.com
calculate_md5.js
in src/core
 107 3 2025-03-08 2025-03-09 2 2 jonas.jenwald@gmail.com timvandermeij@gmail.com
105 7 2021-05-02 2022-10-05 4 2 jonas.jenwald@gmail.com jonas.jenwald@gmail.com
object_loader.js
in src/core
 104 5 2021-04-13 2025-05-06 9 2 timvandermeij@gmail.com jonas.jenwald@gmail.com
murmurhash3.js
in src/shared
 99 3 2022-05-04 2024-01-19 3 2 timvandermeij@gmail.com jonas.jenwald@gmail.com
lzw_stream.js
in src/core
 99 2 2021-04-27 2021-05-01 2 2 jonas.jenwald@gmail.com timvandermeij@gmail.com
file_spec.js
in src/core
 94 7 2021-04-13 2025-05-01 16 2 timvandermeij@gmail.com jonas.jenwald@gmail.com
fullscreen.js
in src/scripting_api
 93 23 2020-11-16 2020-12-02 2 2 calixte.denizet@gmail.com brendan.dahl@gmail.com
worker_stream.js
in src/core
 93 15 2019-06-15 2023-08-27 12 2 timvandermeij@gmail.com timvandermeij@gmail.com
88 4 2024-10-22 2025-01-30 4 2 ryzokuken@igalia.com calixte.denizet@gmail.com
66 2 2021-04-27 2021-07-04 3 2 jonas.jenwald@gmail.com jonas.jenwald@gmail.com
namespaces.js
in src/core/xfa
 64 - 2021-02-01 2021-02-02 2 2 calixte.denizet@gmail.com brendan.dahl@gmail.com
canvas_factory.js
in src/display
 60 7 2024-11-01 2024-11-02 2 2 jonas.jenwald@gmail.com timvandermeij@gmail.com
56 1 2023-04-07 2024-03-05 11 2 calixte.denizet@gmail.com calixte.denizet@gmail.com
53 2 2021-04-27 2021-07-04 3 2 jonas.jenwald@gmail.com jonas.jenwald@gmail.com
47 4 2024-11-01 2024-11-02 2 2 jonas.jenwald@gmail.com timvandermeij@gmail.com
42 12 2018-11-08 2024-11-24 10 2 timvandermeij@gmail.com jonas.jenwald@gmail.com
svg_factory.js
in src/display
 41 5 2024-11-01 2024-11-02 2 2 jonas.jenwald@gmail.com timvandermeij@gmail.com
thermometer.js
in src/scripting_api
 39 11 2020-11-16 2020-12-02 2 2 calixte.denizet@gmail.com brendan.dahl@gmail.com
ccitt_stream.js
in src/core
 39 3 2017-10-19 2022-02-21 14 2 jonas.jenwald@gmail.com jonas.jenwald@gmail.com
common.js
in src/scripting_api
 38 2 2020-12-07 2023-12-06 4 2 calixte.denizet@gmail.com calixte.denizet@gmail.com
37 4 2024-11-01 2024-11-02 2 2 jonas.jenwald@gmail.com timvandermeij@gmail.com