Open-source licences
PDFMagpie stands on excellent open-source work. These are the components that run in your browser, with their licences and the notices they ask for.
The PDF engine
Redact PDF, Remove metadata, Repair PDF, PDF to text, Annotate PDF, Flatten PDF, Crop PDF, Edit properties, Extract images, Create a form, Compare PDFs and the newest encryption path read, rewrite and write PDF files with an engine written in Rust and compiled by us to WebAssembly, which runs in a single browser thread with no shared memory. It is built from a modified selection of the PdfCraft crates by the ArtCraft team. The crates are dual-licensed under the MIT License and the Apache License, Version 2.0 (MIT OR Apache-2.0); PDFMagpie uses them under the Apache License, Version 2.0.
Pinned revision: https://github.com/storytold/pdfcraft, commit 20eebc1c33ff7e6f42ac1c56bf95192f628a9d97. The build depends on that exact commit, so upstream changes cannot alter it without review. Our own wrapper crate (the WebAssembly bindings, option parsing and the reports each tool shows) calls the upstream crates; the patched copies of third-party crates described below come from the same pinned commit.
Copyright notice reproduced as the licences require:
Copyright (c) 2026 ArtCraft Team and the PdfCraft contributors. Licensed under the Apache License, Version 2.0 (the “License”); you may not use these files except in compliance with the License. You may obtain a copy of the License at https://www.apache.org/licenses/LICENSE-2.0. Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. The same code is also available under the MIT License at the licensee’s option.
The upstream repository ships its licence texts and a notice file. The notice excludes the ArtCraft and PdfCraft names, wordmarks and logos from the licence grant, which is why those names appear on this site only in this notice. PDFMagpie is not affiliated with or endorsed by the upstream project or its authors. The same information is kept in THIRD_PARTY_LICENSES.md in our repository.
| Crate | Used for |
|---|---|
pdfcraft-cos | Reading and writing the PDF object structure (the file’s objects, streams and index) |
pdfcraft-model | The in-memory document model: pages, boxes and resources |
pdfcraft-organize | Page-level operations such as cropping, and writing document properties |
pdfcraft-annot | Annotations: highlights, notes, shapes, ink and text boxes |
pdfcraft-redact | Removing text, graphics and image pixels under redaction boxes |
pdfcraft-edit | Rewriting page content |
pdfcraft-forms | Reading, creating and flattening form fields |
pdfcraft-create | Writing out the pictures stored in a PDF, and setting a plain-text report as a PDF |
pdfcraft-compare | Comparing the words and the drawn pages of two files |
pdfcraft-render | Drawing pages to images for previews of results |
The page renderer
Previews of finished files are drawn by the hayro PDF renderer, written in Rust by Laurenz Stampfl and the Hayro Authors and licensed under Apache-2.0 OR MIT. We use it under the Apache License, Version 2.0. The upstream engine carries patched copies of the hayro crates, of the lopdf PDF parsing crate (MIT) and of the vello_common graphics crate under its vendor directory; our build takes those patched copies from the same pinned commit, and they keep their own licences and copyright notices, listed here as they appear in those copies.
| Crate | Version | Licence | Copyright |
|---|---|---|---|
hayro | 0.7.1 | Apache-2.0 OR MIT | Copyright (c) The Hayro Authors (by Laurenz Stampfl) |
hayro-interpret | 0.7.0 | Apache-2.0 OR MIT | Copyright (c) The Hayro Authors |
hayro-syntax | 0.7.2 | Apache-2.0 OR MIT | Copyright (c) The Hayro Authors |
hayro-cmap | 0.1.0 | Apache-2.0 OR MIT | Copyright (c) The Hayro Authors |
hayro-postscript | 0.1.0 | Apache-2.0 OR MIT | Copyright (c) The Hayro Authors |
vello_common | 0.0.8 | Apache-2.0 OR MIT | Copyright 2020 the Vello Authors |
lopdf | 0.45.0 | MIT | Copyright (c) 2016 Junfeng Liu |
| Crate | Used for |
|---|---|
hayro | The page renderer |
hayro-interpret | Interpreting page content for drawing |
hayro-syntax | Parsing the PDF syntax for the renderer |
hayro-cmap | Character maps for fonts |
hayro-postscript | PostScript and CFF font programs |
hayro-jbig2 | JBIG2 scanned-image decoding |
| Crate | Version | Licence | Used for |
|---|---|---|---|
| wasm-bindgen | 0.2.127 | MIT OR Apache-2.0 | JavaScript bindings for the WebAssembly module |
| serde, serde_json | 1.x | MIT OR Apache-2.0 | JSON for options and reports passed to and from the engine |
| png | 0.18 | MIT OR Apache-2.0 | Writing PNG pictures in Extract images |
| zune-jpeg | 0.5 | MIT OR Apache-2.0 OR Zlib | Reading JPEG pictures that need colour handling before they are saved |
| image | 0.25 | MIT OR Apache-2.0 | Picture format support used by the picture tools |
| hayro-jbig2 | 0.3.1 | Apache-2.0 OR MIT | JBIG2 scanned-image decoding, from the crate registry (not a patched copy) |
The remaining crates in the dependency tree are build-time or utility crates under permissive licences. The code that turns your boxes, notes and settings into engine calls, and the interfaces around it, are PDFMagpie’s own.
Fonts and data inside the engine
A few small resources are compiled into the WebAssembly file. Their licences ask for these notices to be reproduced. A colour profile used for rendering (CGATS001Compat-v2-micro.icc) is released into the public domain under CC0 1.0 and needs no notice; we mention it as a courtesy.
Standard-14 substitute fonts (Foxit Type 1 programs, used when a PDF does not embed Helvetica, Times or Courier) · BSD-3-Clause
Copyright 2014 PDFium Authors. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. Neither the name of Google Inc. nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Adobe character-map resources (reading text in PDFs that use CJK and other legacy encodings) · BSD-3-Clause
Copyright 1990-2023 Adobe. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. Neither the name of Adobe nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Brotli compression (the brotli and brotli-decompressor crates, including the static dictionary) · BSD-3-Clause AND MIT
Copyright (c) 2016 Dropbox, Inc. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. The Brotli dictionary and reference code: Copyright (c) 2009, 2010, 2013-2016 by the Brotli Authors, MIT License.
Other libraries and fonts that run in your browser
| Component | Version | Licence | Used for |
|---|---|---|---|
| pdf-lib | 1.17 | MIT | Creating and modifying PDFs for the original tools |
| @pdf-lib/fontkit | 1.1 | MIT | Font embedding |
| PDF.js (pdfjs-dist) | 4.10 | Apache-2.0 | Page previews and text positions, with scripting switched off |
| qpdf (WebAssembly build) | 12.2 | Apache-2.0 | AES-256 encryption and decryption in Protect PDF and Unlock PDF |
| @neslinesli93/qpdf-wasm | 0.3 | ISC | WebAssembly wrapper for qpdf |
| tesseract.js and language data | 7 | Apache-2.0 | Text recognition in OCR PDF |
| fflate | 0.8 | MIT | ZIP output |
| Astro and Preact | current | MIT | Site framework and interactive tool interfaces |
| Lucide icons | 1.52 | ISC | Interface icons |
| Bricolage Grotesque, Atkinson Hyperlegible, JetBrains Mono (fonts) | Fontsource | SIL OFL 1.1 | Headings, body text and code |
| Caveat, Dancing Script, Sacramento, Homemade Apple (fonts) | Fontsource | SIL OFL 1.1 / Apache-2.0 | Typed signatures in Sign PDF |
Each library keeps its own copyright notice in the code we ship. Where a licence asks for a notice to be shown to users, this page is that notice.
What we do not use
No GPL or AGPL PDF components are used: no Ghostscript, no MuPDF. Nothing is loaded from a content delivery network, and no component sends your files anywhere. You can check that yourself.