Convert a TXT File to PDF
Converting a TXT file to PDF takes plain, unformatted text and lays it out onto fixed pages with a chosen font, size and margins, wrapping long lines and starting new pages automatically. This tool does the conversion entirely in your browser: open a .txt file or paste text, and it generates a paginated PDF on your device without uploading anything.
How it works
A .txt file contains nothing but a stream of characters and newline codes — no fonts, no page sizes, no margins. Turning it into a PDF therefore means adding a layout: the converter picks a page size, subtracts the margins to get a usable text area, and computes how many characters fit on one line and how many lines fit on one page from the metrics of the chosen font.
The text is then flowed into that grid. Each newline in the source starts a fresh line; lines wider than the text area are wrapped at the last word boundary that fits, which is measured using the font's per-character advance widths rather than a fixed guess. When the running vertical position reaches the bottom margin, the converter closes the current page and opens a new one — this is the pagination step that a text editor never has to do.
The output is written with pdf-lib as genuine PDF text operators: each line becomes a positioned text-showing operation in the page's content stream, referencing one of the fourteen PDF standard fonts (this tool offers the Helvetica, Times and Courier families). Because every conforming PDF viewer supplies these fonts itself, none has to be embedded in the file — which is why the output is tiny and the text remains fully selectable and searchable, unlike converters that rasterize text into images.
One practical detail: the standard fonts encode text in WinAnsi (a Latin-1 superset), so accented Western European characters work, but characters outside that set — emoji, Greek, Cyrillic, CJK — have no glyphs available and cannot be drawn. For those you need a converter that embeds a Unicode font.
Worked example: a 180 KB server log
Input: access.log, a 180 KB plain-text server log with 2,150 lines, many longer than 100 characters. Converted with Courier at 9 pt on A4 with 15 mm margins: the text area fits roughly 96 monospaced characters per line and 68 lines per page, so long lines wrapped once and the result came out at 41 pages.
The finished PDF was 92 KB — about half the size of the source text, because PDF compresses each page's content stream with Flate (the zlib algorithm), and log text with its repeated timestamps and paths compresses well. Conversion took under a second, and searching the PDF for an IP address in a viewer found the same matches as grepping the original file. The same log at 11 pt instead of 9 pt produced 63 pages: font size is the main lever on page count, not file size, which only grew to 191 KB.
Frequently asked questions
Is my text uploaded to a server during conversion?
No. The PDF is assembled by JavaScript running in your own browser tab, and the text never leaves your device. You can disconnect from the internet after the page loads and the tool still works.
Will the PDF keep my line breaks and blank lines?
Yes. Every newline in the source text starts a new line in the PDF, and blank lines are preserved as vertical space. Lines longer than the page width are additionally wrapped at word boundaries.
Can I convert a .log, .csv or code file the same way?
Yes, any plain-text file works regardless of extension, since there is no formatting to interpret. A monospaced font is the better choice for logs, CSV data and source code because column alignment depends on every character having equal width.
What happens to special characters and emoji?
The standard PDF fonts used here cover the Latin-1 character set, so accented European letters convert fine. Characters outside it, such as emoji or CJK text, are not in those fonts and are replaced or skipped rather than drawn.
How big a text file can the converter handle?
Plain text is tiny relative to browser memory, so files of several megabytes, which is thousands of pages, convert in seconds. The practical limit is your patience scrolling the result, not the browser.
Why is the PDF so much smaller than a Word export of the same text?
This tool uses the PDF standard fonts, which viewers supply themselves, so no font files are embedded. A word processor typically embeds font subsets and metadata that add hundreds of kilobytes before any text is stored.