DOC vs PDF
Word Document (Legacy) 및 PDF Document의 상세 비교 — 파일 크기, 품질, 호환성 및 워크플로에 적합한 포맷 선택 가이드.
핵심 요약: DOC(Word Document (Legacy))와 PDF(PDF Document)는 서로 다른 환경에 최적화되어 있습니다. 아래 기술 비교표를 확인하고 브라우저에서 바로 DOC와 PDF를 상호 변환해 보세요.
DOC vs PDF, 언제 사용해야 할까요?
DOC 다음 경우에 사용하세요…
DOC(Word Document (Legacy)) 추천 상황: 사용 중인 전문 프로그램이나 보관 규정이 DOC 포맷을 기본으로 요구할 때.
PDF 다음 경우에 사용하세요…
PDF(PDF Document) 추천 상황: 범용 기기 호환성, 웹 업로드 최적화 또는 더 작은 파일 용량이 필요할 때.
사용 사례별 최적의 포맷
운영체제·기기 간 호환성 확보
Windows, Mac, iOS, Android 어디서나 열리는 포맷으로 변환.
추천: DOC웹 및 이메일 첨부 최적화
화질·음질 손실을 최소화하면서 파일 용량을 효율적으로 관리.
추천: DOCWord Document (Legacy)
Documents & TextDOC is the legacy binary format used by Microsoft Word 97-2003. While superseded by DOCX, many archived and legacy documents still use this format and require conversion for modern editing.
DOC 파일 정보PDF Document
Documents & TextPDF is the universal standard for sharing documents with consistent formatting across all devices and operating systems. It preserves fonts, images, and layout exactly as intended by the author.
PDF 파일 정보장점 비교
DOC 장점
- Universal compatibility — every Word version since 1997 reads it natively.
- Rich feature set: styles, tables, comments, track changes, embedded OLE objects.
- Binary format means fast loading even on slow machines.
- Well-understood after decades of reverse-engineering — dozens of parsers exist.
PDF 장점
- Pixel-perfect fidelity across operating systems, browsers, and printers.
- Embeds fonts, so documents render identically without the reader having them installed.
- Supports digital signatures, encryption, and redaction for legal workflows.
- ISO-standardized (ISO 32000) with multiple validated subsets (PDF/A, PDF/X, PDF/UA).
- Supports both vector and raster content, keeping line art crisp at any zoom level.
한계점
DOC 한계점
- Legacy format — Microsoft stopped improving it in 2007; new features require DOCX.
- Binary structure is fragile; corruption often makes files unrecoverable.
- Historic malware magnet: embedded macros have spread viruses since the 1990s.
- Not open-standard — DOCX is the ISO-standardized successor.
- Subtle formatting drifts when opened in LibreOffice or Google Docs.
PDF 한계점
- Editing is difficult — the format is optimized for display, not mutation.
- Text extraction can scramble reading order in multi-column layouts.
- File sizes balloon quickly when embedding high-resolution images or fonts.
- Accessibility (screen readers) requires careful tagging that many PDFs skip.
- JavaScript support has historically been a malware vector.
기술 사양
| 사양 | DOC | |
|---|---|---|
| MIME type | application/msword | application/pdf |
| Container | OLE Compound File (Word 97-2003) | — |
| Standard | MS-DOC [MS-OOPR] (released 2008) | — |
| Successor | .docx (2007) | — |
| Character encoding | UTF-16 LE (Word 97+) | — |
| Current version | — | PDF 2.0 (ISO 32000-2:2020) |
| Compression | — | Flate, LZW, JBIG2, JPEG, JPEG 2000 |
| Max file size | — | ~10 GB (practical); 2^31 bytes (theoretical per object) |
| Color models | — | RGB, CMYK, Grayscale, Lab, DeviceN, ICC-based |
| Standard subsets | — | PDF/A, PDF/X, PDF/UA, PDF/E, PDF/VT |
일반적인 파일 크기
DOC
- Short letter 25-50 KB
- 20-page report 150-400 KB
- Book manuscript with images 2-20 MB
- 1-page text-only memo 50–150 KB
- 10-page report with images 500 KB – 2 MB
- Scanned document (per page) 100 KB – 1 MB
- Full-color magazine (48 pages) 10–40 MB
기술 심층 분석: DOC vs PDF
DOC vs PDF: 심층 기술 분석
1. 압축 방식 및 호환성
DOC와 PDF는 데이터 인코딩 구조가 다릅니다. KaijuConverter를 사용하면 별도 프로그램 설치 없이 몇 초 만에 두 포맷을 변환할 수 있습니다.
Sensitive Documents, Scanned OCR, or 500+ Pages?
For legally sensitive archives that must never leave your local network, or multi-hundred page scanned PDFs needing optical character recognition, local document workstations ensure full compliance.
정기 구독 부담 없이 24시간 동안 최대 1GB 파일 및 50개 일괄 변환을 이용할 수 있습니다.
대용량 비디오, PDF, 무손실 오디오를 광고 없이 우선 대기열로 브라우저에서 바로 변환하세요.
최대 1,024 MB 초고속 클라우드 파이프라인, 24시간 암호화 보관 및 우선 처리 지원.
Offline conversion for multi-hundred page contracts, spreadsheets, and local optical extraction.
High-accuracy legal OCR, certified PDF/A archiving, and compliant document redaction.
자주 묻는 질문
압축 알고리즘, 파일 용량 효율성 및 운영체제·브라우저별 기본 지원 범위에서 차이가 있습니다.
네, 이 페이지에서 최대 25MB까지 무료(24시간 패스 및 Pro는 최대 1GB)로 즉시 변환할 수 있습니다.
DOC is the legacy Microsoft Word binary format used from 1983 to 2007, storing text, images, formatting, and embedded objects in the OLE Compound File container since Word 97. It was replaced as default by DOCX in Office 2007 but remains widely used in legacy archives and older government systems.
DOC files open in every Microsoft Word version from 1997 onward, Google Docs (free), LibreOffice Writer (free), Apple Pages, and most online viewers like OneDrive and Dropbox preview. On iPhone and Android, Word apps open DOC natively.
Use KaijuConverter's DOC-to-PDF converter for a single-click conversion. Microsoft Word, Google Docs, and LibreOffice all export to PDF natively via "Save as PDF" or the print menu — the result is identical and preserves every font, layout, and image.
Always DOCX for new documents. DOCX files are 75% smaller thanks to ZIP compression, follow the ISO/IEC 29500 standard, and support every modern Word feature. DOC is essentially a legacy compatibility format — Microsoft stopped improving it in 2007.
Older DOC files could contain VBA macros that became a common malware vector in the 2000s. Modern Office blocks macros by default. If you receive a suspicious .doc, open it in Google Docs or LibreOffice first — both strip macros automatically during import.
Yes. Open the .doc in Microsoft Word and use Save As → Word Document (.docx). LibreOffice Writer offers the same export. Formatting transfers cleanly in 99% of cases; complex features like some legacy form fields may need minor manual fixes.