Convert PDF to A4 Format

A PDF with non-standard page sizes looks wrong when printed on A4 paper.

Use Ask PDF: type "convert to A4" and every page is standardized to 210 × 297 mm instantly.

Choose file(s) to upload

Files up to 700 MB

Frequently asked questions

What is Ask PDF?

Ask PDF is an AI-powered command tool that edits a PDF from a plain-language request.

Which commands are supported?

Ask PDF currently supports straightening page orientation, removing blank pages, converting pages to A4, putting two pages on one A4 sheet, compressing PDF files, and creating searchable PDFs with OCR when needed.

How many credits does one command use?

Each successful PDF command uses 1 credit. You can purchase credit packs: 10 credits for $2.99 or 50 credits for $9.99. Credits never expire.

Is my PDF stored or shared?

No. Your file is processed entirely in memory for the duration of the request and immediately discarded. We never store, index, or share your document content.

Can Ask PDF make a scanned PDF searchable?

Yes. When a page has no text layer, Ask PDF can use AI OCR and add a hidden text layer so the output PDF can be searched.

Related problems

Resize PDF to A4 Your PDF has mixed page sizes - Letter, A3, or custom - and you need everything in A4. Make PDF Pages the Same Size A PDF assembled from multiple sources often has inconsistent page sizes - some A4, some Letter, some custom.