Free Online PDF to STL Converter

Use our free-to-use and fast PDF to STL file converter to expertly convert your PDF files perfectly into the STL file format, ready for further editing or use in your favourite STL file editing application. Our tool can also batch convert your PDF files, enabling you to convert up to 20 files in one go.

Or drag and drop your files here to upload.
A maximum of 20 files can be uploaded at once.

Please note: Your PDF file, once uploaded to our server, will be deleted 15 minutes after upload, so please download your converted PDF file before this time.

Use the button above to select the PDF files you wish to upload; once selected, you can click the Upload button to start the conversion. Once all your files have been converted, you will be able to download your STL files either individually or all together in a compressed ZIP file.

How to Convert your PDF to STL Online?

Here are two simple steps to convert your PDF to STL using our fast and free PDF converter tool.

Upload your PDF file

Click the "Upload a PDF File" button, then select a PDF to upload. The maximum file size is 100MB.

Download your STL

Click the download link to receive your STL file.

Frequently Asked Questions

How can I convert my PDF file to STL?

First, click the "Upload..." button and select your PDF file to upload. Your PDF file will be uploaded to our servers. When the PDF to STL conversion has completed, you can download your STL file right away.

How long does it take to convert my PDF to STL?

We aim to process all PDF to STL conversions as quickly as possible; this usually takes around 5 seconds; however, this can be longer for certain files, so please be patient.

How accurate is the PDF to STL conversion?

We aim to provide the best conversion experience. Our tools are under constant review and development, with new features being added every week.

File format information for PDF and STL

ExtensionPDF
Full NamePortable Document Format
TypeDocument
Mime Typeapplication/pdf
FormatBinary

PDF documents have been around for many years, becoming the standard format for storing and transmitting documents with rich content such as formatted text, images, tables, and other complex formatting. The format is still under development, with new features being added with each revision.

One of the reasons for its widespread adoption is its ability to store all the required document components, especially fonts, within a single file, allowing the document to be rendered equally on different platforms and devices.

PDF documents are read-only, unless opened within Adobe's own editing software. Support for importing and converting to and from the PDF format is widely supported by document editing software.

ExtensionSTL
Full NameStandard Triangle Language
Type3D Model
Mime Typeapplication/vnd.ms-pki.stl
FormatText
Opens WithBlender, MeshLab, CAD Assistant, DAZ Studio

The STL, or Standard Triangle Language, file format has been around since the '80s and is supported by most modern 3D modelling applications. In particular, the STL format has become something of a standard format within the area of 3D printing, despite the rise of more modern formats such as 3MF.

STL files come in two flavours: binary or text format. The text format is human-readable, making it easy to perform manual edits, but can lead to very large file sizes. As you can imagine, the binary format is much more compact and represents the majority of the STL files you are likely to encounter.

The format itself is very simple; the 3D model is represented by a sequential list of triangles, with each triangle defined with 3 points consisting of their X, Y, and Z positions, along with an additional vector that contains the face normal (the direction the face is pointing). There is an additional attribute block for each triangle; however, this is largely unused and thus unsupported.

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