Daopen: HWP, ODT to PDF Viewer

Daopen opens the documents other readers give up on - and converts them to PDF.
HWP to PDF, ODT to PDF, Pages to PDF, right on your phone. No upload, no account, no subscription.

READ ALOUD (NEW)
- Daopen reads your document aloud from the page you are on - PDF, HWP, Word, PowerPoint, ODT, Pages and more
- 10 natural, high-quality AI voices, generated on your phone (one-time ~380 MB download; your text is never sent anywhere)
- Speed 0.75x to 1.5x, previous/next sentence, and a sleep timer (15 minutes to 12 hours)
- AI voice languages: Korean, English, Japanese, German, French, Spanish, Portuguese, Italian, Russian, Indonesian, Vietnamese and Turkish. Other languages use your phone's voice
- Included in the one-time Remove Ads purchase. Reads while Daopen is open on screen

FORMATS OTHER READERS REFUSE
- OpenDocument - ODT, ODS and ODP from LibreOffice and OpenOffice. Tables, images and bullet lists stay intact.
- Apple - Pages and Keynote with their full text (and Pages to PDF), Numbers tables with values, dates and merged cells. Read what someone sent you without a Mac.
- Hangul - HWP and HWPX, the Korean office format, including old HWP 3.x files from before Hangul 97.
- Old Office files - Word .doc, Excel .xls and .xlsb, PowerPoint .ppt, and RTF.

EDIT AND ANNOTATE
- Long-press a paragraph in an HWP file, a cell in an Excel (.xlsx) or OpenDocument (.ods) sheet, or a text box in PowerPoint (.pptx) to edit it
- Word (.docx) and OpenDocument text and slides (.odt, .odp): tap the pencil, then tap a paragraph to edit it
- PDF: add pen, highlighter, text boxes and your signature on top of the page (the PDF's original text is not edited)
- Your original file stays untouched - the edit is saved as a separate "_edited" copy
- Documents with complex formatting may look slightly different after editing

SIGNED FILES, E-INVOICES AND EMAILS
- .p7m signed files and Italian e-invoices (fattura elettronica, FatturaPA) - opened and summarised
- .asice, .bdoc, .edoc, .ddoc signature containers - see the documents inside
- .xsig and .xades signatures, Spanish FacturaE invoices
- .zfo data box messages (Czech datová schránka) with their attachments
- .eml emails and Outlook .msg files - body and attachments
- Chinese OFD documents - text view

NO ADS WHILE YOU READ
The document screen is the document, edge to edge - no banner on the page. No ad when you close a file, and no video ads.

The free version shows a small banner on the file list, and a short full-screen ad when you open a document - at most every third file, never twice within a minute. A one-time purchase removes all ads for good and unlocks read aloud. No subscription.

EVERYTHING HAPPENS ON YOUR DEVICE
Your files are never uploaded to a server. Daopen has no login, no cloud account and no sync. Open the app in airplane mode and it still works.

CONVERT TO PDF WITHOUT UPLOADING
- HWP to PDF, ODT to PDF, Pages to PDF, Word to PDF - any document to PDF
- Document pages to images, saved straight to your gallery
- Text, Markdown or CSV out of Word, Excel, PowerPoint and Hangul files
- Photos into a single PDF - useful for receipts and paperwork

FINDS YOUR FILES
Daopen scans your storage and lists what it can open, sorted by type, by date or by size. Star the ones you come back to. Recently opened stays at the top.

ABOUT PERMISSIONS
Daopen asks for file access only to read your documents - no contacts, no location, no camera, no ad profile. You can also skip the scan and pick files by hand.

Made by Mung Works.

Daopen is an independent app and is not affiliated with Hancom Inc. Hangul and HWP are trademarks of Hancom Inc.
Microsoft, Word, Excel and PowerPoint are trademarks of Microsoft Corporation. Apple, Pages, Numbers and Keynote are trademarks of Apple Inc.
Developed with reference to the HWP file format public documentation by Hancom Inc. (본 제품은 한글과컴퓨터의 한/글 문서 파일(.hwp) 공개 문서를 참고하여 개발하였습니다.)