고객센터
Guides, troubleshooting steps and answers for getting the most out of every My PDF tool.
Popular Questions
Tool Guides
Every tool page includes its own step-by-step instructions and FAQ — start with a category below.
병합 PDF Tools
여러 PDF 파일을 하나의 문서로 결합합니다.
분할 PDF Tools
PDF에서 페이지를 분리, 추출 또는 제거합니다.
변환 PDF Tools
PDF를 다른 형식으로 변환하고 다시 되돌립니다.
보안 PDF Tools
민감한 문서를 보호, 서명 및 워터마크 처리합니다.
편집 PDF Tools
텍스트와 번호를 추가하고 페이지 방향을 수정합니다.
최적화 PDF Tools
손상된 파일을 복구하고 웹용으로 준비합니다.
유틸리티 PDF Tools
문서를 비교, 보관 및 재구성합니다.
텍스트 도구 PDF Tools
온라인으로 텍스트를 정리, 계산, 정렬 및 생성합니다.
인코딩 도구 PDF Tools
Base64, URL 및 HTML 문자열을 인코딩하고 디코딩합니다.
해시 생성기 PDF Tools
MD5, SHA-1, SHA-256 및 SHA-512 해시를 생성합니다.
비밀번호 도구 PDF Tools
강력한 비밀번호를 생성하고 비밀번호 강도를 확인합니다.
식별자 및 무작위 도구 PDF Tools
UUID, 무작위 숫자, 문자열 및 색상을 생성합니다.
색상 도구 PDF Tools
색상, 팔레트, 그라데이션을 변환, 선택 및 생성합니다.
JSON 및 코드 도구 PDF Tools
JSON, XML, HTML, CSS 및 JS를 포맷, 검증 및 축소합니다.
날짜 및 시간 도구 PDF Tools
타임스탬프를 변환하고 날짜 차이와 나이를 계산합니다.
QR 및 바코드 도구 PDF Tools
QR 코드 및 간단한 숫자 바코드를 생성하고 읽습니다.
Troubleshooting
The most common issues visitors run into, and how to resolve each one.
| Symptom | Likely Cause | How to Fix It |
|---|---|---|
| A file won't upload at all | The file exceeds the size limit, or the browser lost its connection mid-upload. | Confirm the file is under 50 MB and try again on a stable connection. |
| "Unsupported file type" error | The file's real content doesn't match an accepted format for that tool, even if the extension looks right. | Check the accepted formats listed on the tool page, or re-export the file from its original application. |
| "This file appears corrupted" error | The PDF's internal structure is damaged, often from an earlier failed save or an unreliable third-party tool. | Try re-exporting the original document to PDF again, or open and re-save it in a PDF reader first. |
| "This PDF is password-protected" error | The tool you chose cannot safely process an encrypted file. | Run the file through Unlock PDF first, then use your intended tool on the unlocked result. |
| Download link no longer works | Download links are single-purpose and expire automatically after a short window. | Re-run the original tool on your file to get a new, working download link. |
| Processing seems stuck or very slow | Very large or visually complex PDFs take longer, especially for compression and conversion. | Give it a little longer, or try compressing the file first to reduce its size before converting. |
Downloads
Once a tool finishes processing your file, you're given a one-time download link. That link points to a temporary result file, not a permanent address — it expires after a short window (currently about 30 minutes) and cannot be reused once the underlying file is cleaned up. If you need the result again later, simply re-run the tool; regenerating it takes only a few seconds.
Save the file to your device as soon as it downloads. We cannot recover a result once its retention window has passed, since nothing is kept beyond that point.
File Issues
Most upload rejections come down to one of a handful of checks every file passes through: an unsupported format, a file over the size limit, a corrupted PDF structure, or an encrypted PDF submitted to a tool that requires an unlocked file. The error shown always names which check failed rather than a generic "something went wrong" — if you're stuck, that message is the fastest way to know what to try next.
Performance Issues
Processing time scales with file size and complexity — a 100-page scanned PDF simply takes longer than a five-page text document. If a tool feels slow:
- Try compressing the file first with Compress PDF, then run your intended tool on the smaller result.
- Check your own network connection — a slow or unstable upload affects how quickly a file reaches our servers in the first place.
- If you see a rate-limit message, that's a deliberate safeguard against automated abuse, not a bug — wait a minute and try again.
Privacy Questions
Every file is processed automatically and deleted shortly afterward — nothing is read by a person, stored long-term, or shared with a third party. For the full details, see our Privacy Policy and our dedicated Security & Privacy page.