PDF ke PDF/A
Tukar mana-mana PDF kepada PDF/A-2b atau PDF/A-3b untuk pengarkiban jangka panjang — format yang diwajibkan oleh agensi kerajaan dan mahkamah. Berjalan sepenuhnya dalam pelayar anda.
PDF/A is the archival subset of PDF, and it exists because an ordinary PDF is not self-contained: it can reference fonts the reader is expected to have, run scripts, or point at content elsewhere, and in twenty years those assumptions fail. PDF/A forbids that — everything needed to render the page has to be inside the file. It is what public administrations, courts and digital archives require when a document has to be readable for decades.
Two levels are offered. PDF/A-2b is the standard choice and what most archives ask for. PDF/A-3b gives the same guarantees but also permits embedded attachments, which is why electronic invoices use it: the human-readable page and the machine-readable XML travel as one file. The conversion is best-effort — formal validation is a separate step that no browser can perform, so if a specific archive demands a validation report, produce the file here and validate it with their tool.
How it works
- Drop in the PDF.
- Choose PDF/A-2b, or PDF/A-3b if the file must carry attachments.
- Convert and compare the before-and-after size.
- Download the PDF/A file.
What people use it for
- Filing a document with a public administration that only accepts PDF/A.
- Archiving records that must still open in twenty years.
- Producing a PDF/A-3b container for an electronic invoice with its XML inside.
Frequently asked questions
- Is my file uploaded to a server?
- No. The file is opened by JavaScript and WebAssembly running inside your own browser tab. It is never uploaded, there is no server-side processing and nothing is stored — closing the tab discards everything.
- PDF/A-2b or PDF/A-3b?
- 2b unless you need attachments. Both give the same archival guarantees; 3b additionally allows embedded files, which is what electronic invoicing uses to carry the XML alongside the readable page. If the office did not ask for 3b, use 2b.
- It says the conversion engine could not run.
- That is about the engine, not your file — the conversion needs Ghostscript, and it could not start. Nothing is wrong with the PDF you supplied. Check your connection and try again.
- Is the result formally validated?
- No. The conversion is best-effort and most archives accept it, but formal validation — with a tool such as veraPDF — cannot run in a browser. If your recipient requires a validation report, generate the file here and validate it with their tool.
- Why did my file get bigger?
- Because PDF/A requires everything to be embedded, particularly the fonts. A document that referenced common fonts by name now carries them, and that is the price of a file that still renders identically in twenty years.
Alat berkaitan
- 081081Mampatkan PDFKecilkan PDF untuk e-mel atau muat naik tanpa menukar teks kepada imej — pilih tahap, lihat saiz baharu, setiap huruf kekal boleh dipilih.
- 082082Mampat imejKecilkan JPG, PNG dan WebP untuk web dengan satu klik — slaid kualiti, resize pilihan, kelompok dalam zip. Semua dalam pelayar.
- 083083PDF skala kelabuTukar setiap halaman kepada hitam putih — sesuai untuk cetakan lebih murah.
- 085085Optimumkan untuk webLinearkan PDF untuk paparan web pantas dan penstriman progresif.