How to convert a PDF to JPG, page by page
Este contenido está en inglés.
Sometimes a PDF needs to be an image. A website may accept only JPG uploads, a messaging app may show a PDF as a file icon rather than a preview, or a printer may want each page as a picture. Converting a PDF to JPG turns every page into its own image. This guide explains what happens to the page during conversion, how to pick a scale that suits your use, how to export only the pages you need and what to check afterwards.
What happens when a PDF becomes a JPG
A PDF page is a set of instructions for drawing text, shapes and pictures. Converting to JPG draws each page onto a grid of pixels and saves that drawing as an image. This process is sometimes called rasterising. The result looks like the page, but the text is no longer selectable and cannot be searched or copied as text.
Because each page becomes one image, a ten-page PDF produces ten JPG files. If you need them in one file again, you can rebuild them with the images to PDF tool.
- Text in the JPG is a picture of text, so it cannot be copied.
- One PDF page becomes one JPG file.
- Use the original PDF if you still need selectable text.
Choose the right scale
The scale decides how many pixels each page gets. A scale of 1 gives a picture that is about the size of the page on a standard screen, which is fine for chat messages and quick previews. For printing, or for any page with small text, a scale of 2 gives a noticeably sharper result, because the image has twice as many pixels to describe each letter.
Higher scales make bigger files. If the JPG is only going on a website, a scale of 1 or 1.5 is usually enough. If it is going to a print shop, use 2.
- Chat or quick preview: scale 1.
- Website: scale 1 to 1.5.
- Printing or small text: scale 2.
Export only the pages you need
Converting a whole report when you only need pages four to six wastes time and creates files you will delete later. Before you start, decide which pages you need and write the range down. Enter the range in the conversion tool so that only those pages become images.
Worked example. A 40-page property survey arrives as one PDF, but the letting agent only asks for the photographs on pages 12 to 15. Set the range to 12 to 15 and a scale of 2 for print quality. You receive four JPG files, which is much easier to attach than a 40-page document converted in full.
- Write down the page numbers before you start.
- Use the range option rather than converting everything.
- Check that page numbers match the printed numbers in the document.
Naming and organising the output
Each page is saved as a separate file, so the names matter. A useful pattern is the document name, then the page number, such as survey-page-012.jpg. Zero-padded numbers keep files in order: page 012 sorts before page 100, but page 12 does not.
Keep the original PDF next to the images in the same folder. If someone later asks for the text version, you will still have it.
- Name files with the document name and page number.
- Pad numbers with zeros so they sort correctly.
- Keep the original PDF in the same folder.
Check the result before you send it
Open several pages, not just the first one. Look for missing images, cut-off margins and text that has become too small to read at the size you will use. Forms with tick boxes and handwritten notes often need a higher scale to stay legible. If a page looks blurred, convert it again at scale 2 rather than sending a blurry copy.
Check that the page order is correct when you attach multiple files. Some upload forms sort attachments by name, so the naming pattern from earlier protects you from sending page 10 before page 2.
- Check the first, middle and last pages.
- Look for cut-off margins and small text.
- Reconvert at scale 2 if any page is blurred.
When a JPG is the wrong choice
A JPG is not always the best answer. If the document contains text that someone needs to search or copy, keep the PDF. If the page has lots of sharp lines, such as a diagram or a table, a PNG may look crisper, because JPG can smudge edges slightly. For a single page you want to keep as a picture, the image format converter can change the format once you have the image.
- Keep the PDF if people need to search or copy text.
- Consider PNG for diagrams and sharp tables.
- Use JPG when the destination specifically asks for it.
Herramientas mencionadas en esta guía
PDF to JPG
Save each page of a PDF as a JPG or PNG image at 1x, 2x or 3x size.
PDF y archivosSplit PDF & Extract Pages
Pull out pages, remove pages or split a PDF into smaller parts.
PDF y archivosJPG & PNG to PDF
Turn photos and images into a single PDF, one image per page.
Preguntas frecuentes
Will the text in the JPG still be searchable?
No. Each page becomes a picture, so the words are pixels rather than text. If you need searchable text, keep the PDF. You can run the image to text tool on a page image if you only need the words, though accuracy depends on how clear the page is.
What is the difference between scale 1 and scale 2?
Scale 2 gives twice as many pixels across and down each page, which makes small text and fine lines sharper. It also produces larger files, so use it for print and for documents with small type.
Can I convert only one page of a PDF?
Yes. Enter the same number as the start and end of the page range, for example 7 to 7. This is useful when you only need a single signature page or a diagram from a long report.
Why does a page look different in the JPG?
Fonts, transparency and some layout effects can change slightly when a page is drawn as an image. Compare the JPG with the original on screen, and if something important differs, try a higher scale or send the PDF instead.