Convert text documents to PDF locally

The question that actually matters

People search for a text doc to PDF converter because they need a quick way to share notes or reports. The version that counts is one that keeps every byte on the device, especially when the source contains personal or financial details.

We built the conversion tools at Toolsly to run entirely in the browser. The MD to PDF converter, the HTML to PDF converter, and the DOCX to PDF converter all process data locally via WebAssembly. Nothing is sent to any server.

Available paths for text sources

Three main text formats map directly to our tools.

• Markdown files convert with a single click in the MD to PDF tool.
• HTML files, including saved web pages, convert through the HTML to PDF tool.
• Microsoft Word documents convert through the DOCX to PDF tool.

Each tool accepts the native file extension and outputs a standard PDF. No extra software or browser extensions are needed.

Page count and file size examples

A concrete before-and-after comparison shows typical results on real documents.

Source format	Pages	Original size	PDF size	\ Notes
Markdown	12	28 KB	84 KB	Images embedded
HTML export	8	156 KB	112 KB	External CSS inlined
DOCX	15	420 KB	178 KB	Tables preserved

The numbers come from test files processed in Chrome 134 on a standard laptop. Larger image-heavy documents increase the PDF size faster than plain text.

Tradeoffs that matter

Local processing removes upload risk but limits certain advanced PDF features. We do not support password protection or digital signatures inside the browser tools. For those needs, use desktop software after the local conversion step.

Browser memory also caps the size of a single job. Documents above roughly 50 MB or 200 pages may require splitting first with the PDF Combine or PDF to Images tools.

Decision rule

Choose the tool that matches your source file type and run the conversion directly. Start with the MD to PDF converter if your text is in markdown, the most common format for notes and technical writing.

How the converters handle layout

Each converter preserves headings, lists, and basic tables. Inline images are embedded when the source contains them. The output PDF uses standard fonts so the file opens on any reader without extra downloads.

Font substitution happens only when the source uses non-standard typefaces. The resulting PDF remains fully searchable.

Workflow for repeated use

Save the source file locally. Open the matching converter page. Drop the file into the drop zone. Download the PDF. The entire sequence stays inside one browser tab.

If you need to combine several converted PDFs afterward, the PDF Combine tool accepts multiple local files in one pass.

FAQ

What file extensions does the converter accept? The MD to PDF tool reads .md and .markdown files. The HTML to PDF tool reads .html and .htm. The DOCX to PDF tool reads .docx.

Can I convert a plain .txt file? No dedicated TXT tool exists. Save the text as markdown first, then use the MD to PDF converter.

Does the PDF retain hyperlinks from the source? Yes. Both the HTML to PDF and MD to PDF converters keep internal and external links clickable.

How large can the input file be? Files up to about 50 MB process reliably in current browsers. Larger files should be split before conversion.

Is the output PDF compatible with Adobe Reader? The produced PDFs follow the PDF 1.4 specification and open in Adobe Reader, Preview, and all major viewers.