File to PDF
Convert a supported office, text, or image file to PDF via Stirling-PDF. Accepted types follow the server allowlist—not every format.
Drag and drop your file here or click to browse
Supported: DOC, DOCX, XLS, XLSX, PPT, PPTX, TXT, RTF, ODT, ODS, ODP, HTML, XML, JPG, PNG, BMP, TIFF, GIF, SVG and moreAccepted types follow the server allowlist. Many LibreOffice-compatible office, text, and image formats are commonly supported.
Supported file types include but are not limited to the following. Unusual or proprietary formats may be rejected by the allowlist.
Microsoft Office:
- • Word: DOC, DOCX, DOT, DOTX
- • Excel: CSV, XLS, XLSX, XLT, XLTX, SLK, DIF
- • PowerPoint: PPT, PPTX
OpenDocument Formats:
- • ODT, OTT, ODS, OTS, ODP, OTP, ODG, OTG
Other Formats:
- • Plain Text: TXT, TEXT, XML
- • Rich Text Format: RTF
- • Images: BMP, GIF, JPEG, PNG, TIF, PBM, PGM, PPM, RAS, XBM, XPM, SVG, SVM, WMF
- • HTML: HTML
- • Other: DBF, FODS, VSD, VOR, VOR3, VOR4, UOP, PCT, PS, PDF
Conversion Tips
Check the allowlist first
Not every extension is accepted. Prefer common Office, OpenDocument, text, or image types listed on the page.
Allow extra time for larger files
Conversion can take up to about a minute depending on size and complexity.
Review the PDF after converting
Complex spreadsheets or presentations may need a quick check of layout and pagination.
Broad allowlisted formats
Handles many Word, Excel, PowerPoint, OpenDocument, text, HTML, and image types accepted by the server.
Single PDF output
One upload produces one .pdf download via Stirling-PDF.
General-purpose path
Use this when a dedicated converter for your format is not listed elsewhere on Toolomix.
What this tool does
File to PDF converts an allowlisted office, text, or image file into a portable PDF for sharing and archiving.
Use it as the general converter when your type is accepted but you do not need a specialized Toolomix tool.
How to use
Upload one file
Select or drag a supported document, spreadsheet, presentation, text, or image file.
Start conversion
Click Convert to PDF and allow time for server-side processing.
Download the PDF
Save the result and review layout before sharing.
Supported inputs and output
Input: one allowlisted file (common Office, OpenDocument, text, HTML, and image types). Output: one .pdf file.
Approximate upload limit is about 100 MB per request. Accepted types follow the server allowlist, not every format.
Common format families
Microsoft Office
Word (DOC, DOCX, DOT, DOTX), Excel (XLS, XLSX, CSV, and related), PowerPoint (PPT, PPTX)—when allowlisted.
OpenDocument
ODT, OTT, ODS, OTS, ODP, OTP, ODG, OTG—when allowlisted.
Other
Plain text, RTF, HTML, XML, and common image formats—when allowlisted.
Processing and privacy
Your file is posted over HTTPS to /api/converter/file-to-pdf and processed temporarily on Toolomix servers via Stirling-PDF, then returned as a download.
Toolomix does not publish a verified universal retention clock for every conversion. See the Privacy Policy for how uploads and logs are handled.
Limitations
Known limits
- Accepted types follow the server allowlist—not every format
- Single file per request—no batch conversion
- Complex layouts may not convert pixel-perfectly
- Larger files can take up to about a minute
- Uploads near or above ~100 MB may be rejected
Troubleshooting
If conversion fails, confirm the type is allowlisted, keep the upload under ~100 MB, and retry with a simpler export of the same document.
If the PDF looks wrong, open the source in its native app, simplify layout, and convert again.
File to PDF FAQ
What endpoint converts my file?
The browser posts to /api/converter/file-to-pdf. Toolomix processes the file through Stirling-PDF and returns a PDF download.
Which file types are accepted?
Accepted types follow the server allowlist—not every format. Common Office, OpenDocument, text, HTML, and image types are typically supported; unusual proprietary formats may be rejected.
How long does conversion take?
Often under a minute, but larger or complex files can take longer.
Will layout match the original exactly?
Not always. Complex Office layouts may not convert pixel-perfectly—review the PDF after download.
Is there a size limit?
Uploads are limited to about 100 MB by server middleware. Larger files may be rejected.
Can I convert multiple files in one request?
No. Upload one file per conversion.
Where is my file processed?
The file is uploaded over HTTPS, processed temporarily on Toolomix servers via Stirling-PDF, and returned as a download. See the Privacy Policy for retention details—Toolomix does not publish a verified universal retention clock.
Related tools
Convert a file now
Upload an allowlisted file and download a PDF when conversion finishes.
