CTAN Comprehensive TeX Archive Network

CTAN Pri­vacy Pol­icy

Ver­sion 2018-03-01


This pri­vacy state­ment cov­ers the di­rect ac­cess of users to the con­tent of the Com­pre­hen­sive Archive Net­work (CTAN) via it's pri­mary server. Espe­cially the ac­cess via the Web site is cov­ered herin.

We take care to pro­tect the pri­vacy of our users and con­trib­u­tors. This state­ment de­scribes our mea­sures and the im­pact on you as our user.

Col­lect­ing and us­ing data

We col­lect data to ful­fill our ser­vices to the pub­lic com­mu­nity. This in­cludes

  • the up­load of pack­ages,
  • the com­mu­ni­ca­tion with the CTAN Team via up­load form or email,
  • the guest book en­tries,
  • the reg­is­tered users,
  • the rat­ing and com­ment­ing of pack­ages and users.

Data you pass to CTAN for the pur­pose to be pub­licly pre­sented are &ellip; pub­lic. This con­tains all in­for­ma­tion in­cluded in up­loaded pack­ages and any other con­tri­bu­tion.

You have the choice that your email ad­dress and other pri­vate data is not made avail­able pub­licly. This is the de­fault. Thus you have to ex­plic­itly agree be­fore we pass on your data (opt-in).

Nev­er­the­less we have to know who is us­ing our ser­vices – at least to pro­tect our­self in case of il­le­gal con­tent. Thus you have to iden­tify your­self at least in­ter­nally to the CTAN Team. It is your free de­ci­sion. If you don't want this then sim­ply stay away from CTAN up­load or user reg­is­tra­tion.

Shar­ing of your in­for­ma­tion

We will not rent or sell your in­for­ma­tion to third par­ties.

In­te­gra­tion of third-party ser­vices

The CTAN Web site uses the Google GeoMap ser­vice to dis­play a map on the mir­rors page. This leads to a di­rect re­quest to re­trieve the nec­es­sary page frag­ments. Thus Google may col­lect data about your vis­its of this page.

So­cial com­mu­nity links

The CTAN Web site con­tains links to the com­mu­nity sites Twit­ter (white pi­geon on blue back­ground), Face­book (white f on blue back­ground), Google+ (white g+ on red back­ground), LinkedIn (white in on blue back­ground), Pin­ter­est (white P on red back­ground), Xing (white X on dark green back­ground), Red­dit (red­dit alien on white back­ground), Tum­blr (white t on blue back­ground), Stum­bleUpon (white su on red back­ground). No data is trans­mit­ted to one of those sites un­less you click on one of the links.


The CTAN site uses cook­ies to store in­for­ma­tion about the set­tings of a user on his com­puter. This in­for­ma­tion is not used nor can it be used to gain fur­ther in­sight in the per­sonal data of the user.

The CTAN site can be used with cook­ies dis­abled. This leads to a mi­nor re­stric­tion of the adapt­abil­ity of the site to the user's taste. Most func­tion­al­ity re­mains in­tact.


The data col­lected dur­ing reg­is­tra­tion are kept for the pur­pose to ful­fill the CTAN ser­vices. Your data is only made pub­lic if you en­able this dur­ing the reg­is­tra­tion pro­cess or on the per­sonal con­fig­u­ra­tion page af­ter­wards.

A reg­is­tered user can re­quest the dele­tion of his ac­count. In this case all data is deleted and can not be re­stored for what­ever pur­pose.

Rat­ing and Vot­ing

The CTAN site may al­low a reg­is­tered user to par­tic­i­pate in rat­ings and vot­ings. In this case the de­ci­sions of the user are stored to­gether with the as­so­ci­a­tion to the user ac­count.

Ac­cess Record­ing and Server Log Files

We record the ac­cess to our ser­vices in server log files. They con­tain the in­for­ma­tion about date and time of ac­cess and the re­quest re­ceived. We keep this data for the pur­pose to im­prove our ser­vices. We do not try to track down in­di­vid­ual users. We do not pass on this in­for­ma­tion to any­body out­side the CTAN team. The log files are only kept tem­porar­ily.

No Abuse

CTAN re­serves the right to delete any con­tri­bu­tion which is il­le­gal or not ap­pro­pri­ate on CTAN with­out any no­tice.

Changes of the Pri­vacy State­ment

The CTAN Team re­serves the right to change the pri­vacy state­ment. The pri­vacy state­ment is pub­lished in it's cur­rent form on the Web site of CTAN.

In­for­ma­tion, Cor­rec­tions and Dele­tion

Any user can re­quest the data stored for him. For this pur­pose write to ctan@ctan.org.

The same ad­dress can be used to re­quest cor­rec­tions or dele­tion of data for a user.

No War­ranty

The ser­vices of CTAN are of­fered to the pub­lic free of obli­ga­tions of any kind. We can not guar­an­tee that the ser­vices are avail­able at any time or func­tion­ing at all.

We can not guar­an­tee that the pack­ages pro­vided for down­load are free of er­rors or ma­li­cious code or that they are func­tion­ing at all to solve any spe­cific task.

We can not guar­an­tee that the pack­ages pro­vided for down­load are free of third-party rights. We pro­vide the in­for­ma­tion about the li­censes with­out any war­ranty. Be­fore us­ing the pack­ages you should take care to fol­low the re­stric­tions of the re­spec­tive li­censes.

We can not guar­an­tee that links in the con­text of pack­ages may not lead you to pages of legally ques­tion­able or ma­li­cious con­tent. Be­ware of any ex­ter­nal links.

In­stances where we are re­quired to share your in­for­ma­tion

CTAN will dis­close your in­for­ma­tion where re­quired to do so by law or sub­poena or if we rea­son­ably be­lieve that such ac­tion is nec­es­sary to

  1. com­ply with the law and the rea­son­able re­quests of law en­force­ment;
  2. to en­force our Terms of Use or to pro­tect the se­cu­rity, qual­ity or in­tegrity of our Ser­vice; and/or
  3. to ex­er­cise or pro­tect the rights, prop­erty, or per­sonal safety of CTAN, our Users, or oth­ers.

How we store and pro­tect your in­for­ma­tion

Your in­for­ma­tion col­lected through the Ser­vice may be stored and pro­cessed in Ger­many or any other coun­try in which CTAN or its ser­vice providers main­tain fa­cil­i­ties

Your choices about your in­for­ma­tion

You con­trol your ac­count in­for­ma­tion and set­tings: You may up­date your ac­count in­for­ma­tion and email-com­mu­ni­ca­tion pref­er­ences at any time by log­ging in to your ac­count and chang­ing your pro­file set­tings at https://www.ctan.org/set­tings.

Opt­ing out of col­lec­tion of your in­for­ma­tion for track­ing

Please re­fer to your mo­bile de­vice or browser’s tech­ni­cal in­for­ma­tion for in­struc­tions on how to delete and dis­able cook­ies, and other track­ing/record­ing tools. Depend­ing on your type of de­vice, it may not be pos­si­ble to delete or dis­able track­ing mech­a­nisms on your mo­bile de­vice. Note that dis­abling cook­ies and/or other track­ing tools pre­vents CTAN from track­ing your browser’s ac­tiv­i­ties in re­la­tion to the Ser­vice. How­ever, do­ing so may dis­able some of the fea­tures avail­able through the Ser­vice.

Links to other web sites and ser­vices

We are not re­spon­si­ble for the prac­tices em­ployed by web sites or ser­vices linked to or from the Ser­vice, in­clud­ing the in­for­ma­tion or con­tent con­tained therein. Please re­mem­ber that when you use a link to go from the Ser­vice to an­other web site, our Pri­vacy Pol­icy does not ap­ply to third-party web sites or ser­vices. Your brows­ing and in­ter­ac­tion on any third-party web site or ser­vice, in­clud­ing those that have a link or ad­ver­tise­ment on our web site, are sub­ject to that third party’s own rules and poli­cies.

In ad­di­tion, you agree that we are not re­spon­si­ble and we do not con­trol over any third-par­ties that you au­tho­rize to ac­cess your User Con­tent. If you are us­ing a third-party web site or ser­vice (like Face­book, Google groups, or an IRC chat room) and you al­low such a third-party ac­cess to your User Con­tent you do so at your own risk.

This Pri­vacy Pol­icy does not ap­ply to in­for­ma­tion we col­lect by other means (in­clud­ing of­fline) or from other sources other than through the Ser­vice.

Guest Book Sitemap Contact Contact Author