Free online PDF to RIS converter

What is an RIS file?

RIS files are plain-text citation files used by reference managers and academic databases to exchange bibliographic data. They contain tagged fields such as TY for reference type, AU for author, TI for title, and PY for publication year.

Can a PDF be converted to RIS?

A PDF cannot usually be converted to RIS directly unless the PDF includes usable metadata or the source platform provides an export option. In most cases, a PDF is only a document container, so the citation details must be extracted first and then saved as an RIS file.

How to convert PDF to RIS

There are three common ways to create an RIS file from a PDF:

• Use the source database: If the PDF came from a publisher, library, or research database, look for an export option such as Export → RIS or Cite → RIS.
• Extract metadata from the PDF: Some reference managers can read embedded metadata from PDFs and create a citation record automatically.
• Enter the citation manually: If the PDF has no usable metadata, copy the bibliographic details from the first page or document header into a reference manager and export as RIS.

Typical workflow

1. Open the PDF and identify the bibliographic details: author, title, journal or book name, year, volume, issue, pages, and DOI if available.
2. Import the PDF into a reference manager such as Zotero, EndNote, or Mendeley.
3. Check whether the software can retrieve metadata automatically from the PDF.
4. Correct any missing or inaccurate fields.
5. Export the record using File → Export and choose the RIS format.

Important limitations

PDF-to-RIS conversion is not always reliable. Scanned PDFs, image-only documents, and poorly formatted files often lack machine-readable text, so automatic citation extraction may fail. In those cases, OCR may help, but manual verification is still necessary.

Also, RIS is a citation exchange format, not a full document format. It stores reference data, not the PDF content itself.

Example of an RIS record

TY  - JOUR
AU  - Smith, John
TI  - Example title
JO  - Example Journal
PY  - 2024
VL  - 12
IS  - 3
SP  - 45
EP  - 52
DO  - 10.1234/example.doi
ER  - 

Best practices

• Verify every field before exporting, especially author names and publication year.
• Use DOI lookup when available to improve citation accuracy.
• Prefer exporting from the original source instead of extracting from the PDF when possible.
• Keep the PDF and RIS file together if you need both the document and its citation record.

In short, converting PDF to RIS usually means extracting or recreating the citation data from the PDF and then exporting it in RIS format through a reference manager or database.