Easy Upload Method
Drag PDFs into the box or browse to add them. Handles many files together for quick work with large groups.
Start by opening the converter page and finding the upload section. Drag your PDF files into the box or click “Pick Files” to find them – it supports many files at once, making it easy for both simple and complex documents.
Once uploaded, check the preview of your files and choose the PDF/A type you need, like 1b for basic archiving or 3 if you want to keep attachments. Next, adjust a few settings: make sure all fonts are included to stop display issues later, confirm colour accuracy for consistent viewing, and turn on validation to ensure it meets ISO standards. If your files are scanned, enable OCR to make text searchable without losing quality.
Drag PDFs into the box or browse to add them. Handles many files together for quick work with large groups.
After upload, see previews and pick sections or rearrange pages before converting for better organization.
Choose from versions like 1a, 1b, 2u, or 3 to fit your archiving purpose and keep files future-safe.
Automatically adds all fonts and correct colour settings so your files always look the same everywhere.
Runs tests to confirm your PDF follows ISO rules and shows any needed fixes before saving.
Add searchable text to image-based PDFs using OCR while keeping them 100% compliant.
Add or change details like author name, title, or tags to make your files easier to find later.
Keeps images, links, and attachments working properly while allowing resizing or positioning.
Watch your edits instantly in a responsive display – rotate, zoom, or make small changes before saving.
Converts detailed PDFs to PDF/A quickly online while keeping full quality and rule compliance.
Get your final files through encrypted links, share or store them safely, and enjoy instant file deletion.
Our converter follows ISO 19005 rules, saving fonts, colours, and structure so files stay readable for decades – great for any official or legal archive.
The OCR adds text layers to image pages, allowing you to search text in your archived files without breaking any PDF/A rules.
Process many PDFs at the same time with automatic version settings, perfect for large organizations or archiving projects.
The tool recommends the best version and settings based on your file’s content, helping you create storage-ready PDFs with useful metadata.
Your files are encrypted during the process and deleted immediately after, ensuring privacy for sensitive documents.
No downloads needed – runs smoothly on computers, tablets, and phones, letting you convert and archive from anywhere.
Officials convert public records into PDF/A for long-term safety; select 1a for accessibility and check metadata for easy audits.
Artists change design PDFs to archivable versions; include colour profiles for accuracy and batch-process artwork safely.
Researchers convert academic PDFs into PDF/A, enable OCR for readable text and pick 2u for Unicode support.
Managers convert policy PDFs into compliant versions; add tags and process groups to support HR and legal archiving.
People save family papers or property scans as PDF/A-3; validate files to ensure they last for generations.
Librarians turn scanned books or journals into PDF/A; include attachments and preview results to ensure accuracy.
Drag them into the upload area or click to select. It supports multiple files at once.
Yes, you can pick from 1a, 1b, 2u, 3, and others as needed.
Turn on OCR to make the text searchable while keeping standards.
Use the validation tool – it checks and shows any issues before saving.
No, large files work fine without restrictions.
Yes, encryption and quick deletion protect all content.
Yes, it runs directly in your mobile browser.
Yes, PDF24 is completely free to use. There are no hidden charges or subscriptions.
Absolutely. All tools are online and work in your browser. There's no need to download or install any software.
Yes, all uploaded files are processed securely, and all temporary files are automatically removed once they have been processed.
PDF24.AI can be used to create PDFs, Word, Excel, PowerPoint, HTML, as well as JPG, PNG, JPEG, TIFF, and more.
Yes, you can edit text, fill out forms, or sign documents in PDF online with the PDF Editor tool.
Use the Extract Images from PDF tool online. By doing so, you can convert the embedded images in it to the most popular file formats in practically no time.
The Compress PDF tool will compress your files while maintaining text readability and image clarity.
The majority of tools process large files quickly; very large documents may take a little longer to process.
Yes, with the Sign PDF tool, you are able to sign and securely manage digital signatures.
Yes, each tool is 100% mobile responsive and can be used on smartphones or tablets for managing documents on the go.