PDF to PDF/A
Convert PDF files to the ISO PDF/A long-term electronic storage standard format (PDF/A-1b, PDF/A-2b). Hard-embed the entire font, ensuring that the text reopened after 20 years remains 100% intact.
Chưa có tệp PDF nào được tải lên
Tải lên tệp PDF để chuyển đổi sang định dạng lưu trữ dài hạn chuẩn ISO 19005 (PDF/A). Đảm bảo tài liệu có thể đọc và hiển thị chính xác qua nhiều thập kỷ.
Mandatory international standards for long-term electronic records storage
Did you know that a regular PDF file that opens today looks great, but reopens it 10 or 20 years later on a new operating system and may have completely lost fonts? That's because regular PDF files only link to fonts installed on your computer and do not store those fonts forever. If computers of the future do not have that font, the text will be distorted and unreadable.
For that reason, the International Organization for Standardization (ISO) has issued the PDF/A format (PDF for Archiving) - a mandatory technical standard for state agencies, electronic tax systems, banks, hospitals and international auditing organizations for all documents that need long-term storage.
Outstanding technical features of the PDF/A standard
- Permanent Embedded Fonts (100% Embedded Fonts): All character sets used in the text are compressed and embedded directly into the file. Whether opened on a Windows, Mac, Linux computer or an operating system from 50 years later, the document is still displayed millimeter-accurately.
- Completely device-independent Color: The color space is standardized according to CIE standards, ensuring stamp and signature details have absolute color fidelity when reprinted later.
- Eliminate dangerous dynamic code: Automatically disable Javascript code, audio, video or external links that pose security risks, turning the file into an immutable and absolutely safe historical record.
- Full compliance with ISO 19005: Ensure files pass all Compliance Validators of administrative agencies and national bidding portals.
Classification table of standard levels PDF/A
| PDF/A standard | Detailed description | Popular applications |
|---|---|---|
| PDF/A-1b | Basic standard ensures the display of images and text remains unchanged over time. | Storing electronic invoices and regular economic contracts. |
| PDF/A-2b | Supports transparent graphics formats (Transparency) and more modern image compression. | Electronic medical records, land planning drawings. |
| PDF/A-3b | Allow attaching data XML files inside PDF files. | Electronic invoice system standard with circulars of the General Department of Taxation. |
Instructions for converting to PDF/A standard
- Step 1: Upload your PDF file to iTools PDF to PDF/A.
- Step 2: Select the required archive standard version (Recommended default: PDF/A-1b or PDF/A-2b).
- Step 3: Click the "Convert to PDF/A now" button and download the document that meets valid international electronic storage standards.
Frequently Asked Questions (FAQ)
1. How do I know whether the converted file meets PDF/A standards or not?
When opening a PDF/A file with Adobe Acrobat Reader software, a blue notification bar will automatically appear at the top of the document: "This file claims compliance with the PDF/A standard and has been opened read-only to prevent modification."
2. Can PDF/A files be edited?
The purpose of PDF/A is permanent storage that cannot be modified. If you want to edit, you need to use iTools' "PDF Studio" to unlock and re-edit.
Mời đội ngũ iTools một ly cà phê ☕
iTools là nền tảng trực tuyến hoàn toàn miễn phí và không giới hạn. Nếu công cụ PDF to PDF/A giúp ích cho công việc của bạn, một ly cà phê nhỏ sẽ là nguồn động viên to lớn để chúng tôi tiếp tục duy trì máy chủ tốc độ cao và phát triển thêm nhiều tiện ích mới!
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