Provides comprehensive tools for extracting and analyzing scientific 
    content from PDF documents, including citation extraction, reference matching, 
    text analysis, and bibliometric indicators. Supports multi-column PDF layouts,
    'CrossRef' API <https://www.crossref.org/documentation/retrieve-metadata/rest-api/> integration, and advanced citation parsing.
| Version: | 
0.2.0 | 
| Depends: | 
R (≥ 4.1.0) | 
| Imports: | 
base64enc (≥ 0.1-3), dplyr (≥ 1.1.0), httr2 (≥ 0.2.0), igraph, jsonlite (≥ 2.0.0), magrittr (≥ 2.0.4), openalexR (≥
2.0.2), pdftools (≥ 3.6.0), purrr (≥ 1.1.0), stringr (≥
1.5.2), tibble (≥ 3.3.0), tidyr (≥ 1.3.0), tidytext (≥
0.4.3), visNetwork (≥ 2.1.4) | 
| Suggests: | 
knitr, plotly, RColorBrewer, rmarkdown, scales, stringdist, testthat (≥ 3.0.0), mockery | 
| Published: | 
2025-10-30 | 
| DOI: | 
10.32614/CRAN.package.contentanalysis | 
| Author: | 
Massimo Aria  
    [cre, aut, cph],
  Corrado Cuccurullo
      [aut] | 
| Maintainer: | 
Massimo Aria  <aria at unina.it> | 
| BugReports: | 
https://github.com/massimoaria/contentanalysis/issues | 
| License: | 
GPL (≥ 3) | 
| URL: | 
https://github.com/massimoaria/contentanalysis, | 
| NeedsCompilation: | 
no | 
| Materials: | 
README, NEWS  | 
| CRAN checks: | 
contentanalysis results |