Artefact

Free, open-source PDF reader and document editor for Android. Previously known as ClearPDF. Read, sign and edit PDFs, open and edit Word, Excel and PowerPoint files, and keep notes, to-do and shopping lists, photos and voice memos on one liquid-glass desk. No ads, no accounts, no internet: everything stays on your phone.

Artefact is the next version of ClearPDF, best known for its user experience and refined features. It installs over ClearPDF as an update and keeps your files where they are. Everything runs on your phone, on one Rust engine for PDF, Word, PowerPoint, Excel and pictures; the app has no internet permission at all.

What you can do - Read and work with PDFs Read with smooth scrolling, pinch zoom, page thumbnails, bookmarks, a reading mode and in-document search. - Select and copy text, with a liquid-glass magnifier; read pages aloud; run on-device OCR for scanned pages. - Highlight, underline, strike out, draw ink, add shapes, text notes and pictures; edit the PDF's own text. Fill forms, sign with a drawn, typed or certificate (digital-ID) signature, and verify signatures. - Organise, rotate, crop, delete and extract pages; merge, split, compress, protect and export PDFs; create PDFs from photos, text or scans.

Open and edit Office documents - Word (.docx, .doc, .odt, .rtf, Markdown, TXT): read, search, read aloud, and edit paragraphs in place with bold, italic, lists, alignment and headings. Save as Word, OpenDocument, RTF, HTML, Markdown, TXT or PDF. - Excel (.xlsx, .xls, .xlsb, .ods, .csv): a pannable grid with frozen panes and sheet tabs; type values and formulas that recalculate, format cells, insert rows and columns, find and undo. Save as Excel or CSV, or export to PDF. - PowerPoint (.pptx, and text from .ppt): slides as pages, full-screen present mode, search, read aloud and export to PDF.

Notes, lists, photos and voice - Quick notes with light formatting, to-do and shopping lists you tick right on the desk, voice memos with a waveform, and photo notes. - A picture editor with exposure, contrast, highlights, shadows, vibrance, saturation and rotation — the way Photos edits. - A thought of the day to start writing from.

Quick Preview - Open a file from WhatsApp, Gmail or a file manager and it floats over that app as a glass card, like Apple's Quick Look. Drag it up to open it in Artefact, or close it and carry on where you were.

Supported formats: - PDF: Opens: .pdf Edits: text, annotations, forms, signatures, pages Save as: PDF, images, text - Word: Opens: .docx .docm .dotx .doc .odt .rtf .md .txt Edits: paragraphs and formatting Save as: .docx .odt .rtf .html .md .txt, PDF - Excel: Opens: .xlsx .xlsm .xlsb .xls .ods .csv .tsv Edits: cells, formulas, formatting, rows and columns Save as; .xlsx .csv, PDF - PowerPoint Opens: .pptx .ppsx .potx, .ppt (text only) Edits: — Save as: .pptx, PDF - Images Opens: .png .jpg .webp .bmp .heic Edits: crop, rotate, adjust, draw Save as: .png .jpg

Rendering is done by Artefact's own Rust engine — no other app or online service is needed.

License MIT license