KeroTools

Convert PDF to PDF/A for Archiving

Convert a PDF to PDF/A for long-term archiving — right in your browser. Your file never leaves your device, and there are no watermarks or sign-ups.

No uploads — 100% privateRuns in your browserFree, no account needed

Drop PDF here or click to browse

PDF files only

Your file never leaves your device

Nothing to delete later

Secure connection

Works in every modern browser

How it works

  1. 1

    Add your PDF

    Drop the PDF onto the page or click to browse and select it.

  2. 2

    Convert

    Press Convert — the file is rewritten as a self-contained PDF/A in your browser.

  3. 3

    Download

    Download the PDF/A, ready to archive or submit where the standard is required.

Why use this tool

Built to last

PDF/A is the ISO standard for documents that must open the same way for decades.

Private by design

The conversion runs locally in your browser — your file is never uploaded.

Self-contained

Fonts and resources are embedded so the file never depends on the viewer’s system.

No watermark

The archived PDF is clean, with nothing stamped onto it.

Free & unlimited

No account, no trial, no per-file charges — convert as many PDFs as you need.

Works on any device

Phone, tablet, or computer — it runs in the browser you already have.

What does converting to PDF/A do?

PDF/A is a special, standardised version of PDF designed so a document will still open and look exactly the same many years from now. It does this by making the file self-contained: fonts are embedded, external dependencies are removed, and features that could break over time are avoided. A normal PDF might rely on a font installed on your computer today; a PDF/A carries everything it needs inside it. Because this tool runs entirely in your browser, the conversion happens on your own device and the file is never uploaded.

When should you convert to PDF/A?

Convert to PDF/A when a document needs to be preserved or submitted to a system that requires the archival standard. Courts, government portals, libraries, and universities often mandate PDF/A for filings, records, and theses precisely because it guarantees the file will remain readable in the long term. Businesses use it to archive contracts and compliance records. If you are storing something important for years, or an official system asks specifically for PDF/A, this is the format to produce.

How to get the best results

Finish all your edits before converting, since PDF/A is meant to be a final, archival copy rather than a working draft. Make sure the document already contains the fonts and content you want, because the conversion embeds what is there. If the file is a scan, consider running OCR first so the archived version is searchable as well as preserved. Keep both your original PDF and the PDF/A: the archival copy is for long-term storage, while the original stays your editable source.

Limitations to be aware of

PDF/A deliberately restricts features that threaten long-term readability, so some interactive elements — certain scripts, external links, or transparency effects — may be simplified or removed to meet the standard. That is by design: the goal is durability, not interactivity. There are also different PDF/A conformance levels for different needs; most archiving cases are well served by a standard level. If a system requires one specific level, check which before submitting, and always keep your editable original.

Common mistakes and how to avoid them

The most common mistake is treating a PDF/A as an editable working file; it is an archival copy, so keep your original PDF for future changes. Another is converting a scan without OCR, leaving an archived image with no searchable text — run OCR first if searchability matters. People also sometimes forget that a specific portal may require a particular PDF/A level; confirm the requirement before submitting. Finally, verify the important content looks right after conversion.

Using it on mobile and desktop

On a computer, convert a finished contract or thesis to PDF/A before filing it in a long-term archive or submitting it to an official system. On a phone, produce a PDF/A of an important document on the spot; everything runs locally, so nothing is uploaded. Because there is no app to install, the same link works on every device, and the archival file opens the same everywhere.

Why convert here instead of another site?

The documents most often archived as PDF/A — legal filings, records, official submissions — are exactly the ones that should not be uploaded to a stranger’s server, yet most online converters do just that. This tool never uploads your file; the conversion happens inside your browser, so a sensitive record stays on your device. There are no watermarks, no account, and no limit on how many files you convert. For archival documents, keeping the process local is the sound choice.

How it compares

FeatureThis toolTypical online PDF tools
File uploaded to a serverNever — converted in your browserUsually uploaded
Self-contained archival PDF/AYesYes
Embeds fontsYesUsually
Watermark on outputNoSometimes
Account or sign-upNot requiredOften required
PriceFreeFree / paid tiers

Features

PDF/A archival format

Produces the standardised format made for long-term preservation.

Embeds fonts

Fonts are stored inside the file so text always renders correctly.

Self-contained file

No external resources are needed to open the document in future.

Keeps your content

Pages, text, and images are preserved as they are.

No installation

Nothing to download or install — it works on the web page.

Runs on your device

Conversion happens locally — the file is never uploaded.

Arabic & RTL friendly

Full interface in eight languages, including right-to-left Arabic.

Secure by default

Served over HTTPS, with no file tracking and no third-party upload.

Who uses it

Legal & government filers

Produce PDF/A for filings and portals that mandate the archival standard.

Universities & students

Submit a thesis as PDF/A where the format is required for the repository.

Businesses

Archive contracts and compliance records so they stay readable for years.

Everyday users

Preserve an important document in a future-proof format — privately, on their device.

Frequently Asked Questions

PDF/A is an ISO standard for long‑term archiving. It embeds fonts and colour information so the document displays identically years from now — often required for legal, government and records use.

PDF/A‑2b suits most needs and is the recommended default. Pick PDF/A‑1 only if a system specifically requires it; PDF/A‑3b additionally allows attachments.

Yes — conversion runs on our server over HTTPS, then the file is deleted right after. It is not stored, logged, or shared.

Related PDF tools

Merge PDF

Combine several PDF files in the order you choose — right in your browser, your files never leave your device.

Split PDF

Extract specific pages or split every page into its own file by the range you choose — right in your browser.

Rotate PDF

Rotate every page or just the ones you pick, permanently — the whole process runs locally in your browser.

Delete PDF Pages

Remove the pages you don't need and keep the rest — entirely in your browser, nothing uploaded to a server.

Watermark PDF

Stamp text like CONFIDENTIAL or DRAFT across every page as a permanent watermark — right in your browser.

Sign PDF

Place your signature image onto a PDF and choose the page, position, and size — runs entirely in your browser.

OCR PDF

OCR recognizes text in Arabic and English and adds it as a selectable, searchable layer — right in your browser.

Compress PDF

Shrink a large PDF while keeping its content readable, ideal for scanned documents — nothing is uploaded.

PDF to Word

Turn a PDF into a Word file (.docx) you can freely edit — processed securely on our server and deleted right after.

Word to PDF

Turn a Word file (.docx/.doc/.odt) into a PDF that looks the same on every device — deleted from our server right after.

PDF to Excel

Convert the tables in a PDF into an editable Excel spreadsheet (.xlsx) — processed securely and deleted right after.

Excel to PDF

Turn an Excel file into a clean, print-ready PDF ready to share — processed securely on our server and deleted right after.

PDF to PowerPoint

Turn a PDF into a fully editable PowerPoint presentation (.pptx) — processed securely and deleted right after.

PowerPoint to PDF

Turn a PowerPoint file into a PDF that looks the same everywhere — processed securely on our server and deleted right after.

Unlock PDF

Unlock a PDF you own so it opens without prompting for a password — processed securely and deleted right after.

Protect PDF

Add a password and AES-256 encryption to a PDF so only people with it can open the file — deleted right after.

JPG to PDF

Combine several JPG or PNG images into a single PDF, one per page, in the order you choose — no upload.

PDF to JPG

Turn every page of a PDF into a high-quality JPG, downloadable individually or as a ZIP — right in your browser.

PDF to PNG

Turn every PDF page into a lossless PNG image, downloadable individually or as a ZIP — right in your browser.

Organize PDF

Rearrange the pages of a PDF into any order and drop the ones you don't need — right in your browser.

Add Page Numbers

Stamp a page number onto every page of a PDF, in the position and format you choose — right in your browser.

HTML to PDF

Turn HTML code or a webpage into a clean, print-ready PDF that keeps its layout — processed and deleted right after.

PDF to CSV

Convert the tables in a PDF into CSV data you can open in any spreadsheet app — deleted right after processing.

Repair PDF

Rebuild the internal structure of a corrupt PDF that won't open or shows errors — deleted right after processing.

Extract Images

Pull every embedded image out of a PDF and download them together as a ZIP — deleted right after processing.

Redact PDF

Permanently black out words or phrases so the hidden text can never be recovered — deleted right after processing.