Tiny Online Tools
Why a PDF at all
An .eml file is an excellent archive and a poor exhibit. It cannot be attached to a case file, filed with an invoice, or handed to someone who does not have a mail client. A PDF can. This converts a batch of saved messages in one pass: EML files, Outlook .msg files, and whole MBOX archives, from which you pick the messages you want.
What the PDF is, and what it is not
It is a text rendering of the message: subject, the header block, the body, and a list of the attachments. It is not a picture of the email as your mail client drew it. Images are not reproduced, CSS layout and tables are not reproduced, and an HTML-only message is converted to plain text first — clearly marked when that happens. Attachments are listed, not embedded; use the Email Attachment Extractor to get the files themselves.
Saying this plainly matters more than it might seem. A PDF that silently drops half the visual content, and does not say so, is worse than no PDF at all when the reason you made it was to keep a record.
Two renderers, one layout
The layout is computed once, then handed to whichever renderer fits.
Text mode draws real, selectable, searchable text with the standard PDF fonts. The result is a few kilobytes per message. Those fonts cover WinAnsi only, though — roughly Latin-1 — so Greek, Cyrillic, Hebrew, Arabic and every CJK script cannot be drawn. Characters outside the range are substituted, and the number substituted is counted and shown rather than hidden.
Rendered mode draws the same layout on a canvas with your system fonts and embeds each page as an image. Every script comes out correctly; the file is much larger and nothing in it can be selected or searched.
Auto looks at the actual characters in the subject, the addresses and the body, and picks. Where it chooses the rendered mode, the results panel says which message forced it and why.
Options
A4, Letter or Legal; base text size; Helvetica, Times or Courier; headers on or off; the attachment list on or off; and one PDF per message or one merged PDF for the whole batch. Each produced file shows its page count and byte size, downloads on its own, or comes down with the rest in a ZIP with a summary CSV.
Privacy
Every message is read and every PDF is built in your browser. Nothing is uploaded.