Image format

PDF

A fixed-page document format mixing text, vectors and raster images. Image conversion requires deliberate page rendering.

Explore the format

Convert PDF to

Choose a target format for your PDF images.

All 21 conversions

Marked paths may need steps such as flattening, rasterization, tone mapping or animation loss.

Convert to PDF

Choose a source format to convert to PDF.

All 36 conversions

Marked paths may need steps such as flattening, rasterization, tone mapping or animation loss.

About PDF

Portable Document Format

Adobe created PDF to exchange documents with a stable page appearance across systems. A page description can combine text, fonts, vector paths and raster images. PDF is therefore not a single image codec, and a page can contain several pictures or no raster picture at all.

Objects and image streams may use different compression filters, including lossless schemes and lossy image coding. PDF also defines transparency, annotations, metadata and colour-management structures. Interactive or multimedia content is distinct from a portable image animation; these features and external dependencies depend on the reader and document profile.

Use PDF for print layouts, reports and documents that must retain page structure. To make an image, choose the page, resolution and background and render its composition. Extracting an embedded picture is a different operation and may omit text, clipping or other page elements. Keep the PDF if selectable text and multiple pages matter.

Key capabilities

Compression
Depends on variant
Transparency
Yes
Animation
No
Extensions
.pdf
MIME type
application/pdf
Metadata
Document information, XMP, ICC output intents
Best for
Fixed-layout documents & print
Multiple images
Page tree
Vector graphics
Paths & text on pages

PDF has no single compression quality. Different streams may use lossless or lossy filters; page rasterization can remove document structure even when the resulting pixels are encoded losslessly.

History of PDF

PDF began as Adobe’s portable page-description format and later became an ISO-standardised document family.

  1. 1993

    Adobe introduces PDF

    Adobe introduces PDF for reliable document exchange, keeping page appearance independent of the originating application and platform.

  2. 2008

    ISO 32000-1

    PDF becomes an ISO standard through ISO 32000-1. Standardisation shifts the core format specification beyond a single vendor’s product documentation.

  3. 2017

    PDF 2.0

    ISO 32000-2 introduces PDF 2.0. It updates the document standard while distinguishing the core format from specialised conformance profiles such as PDF/A.

  4. 2020

    Revised PDF 2.0 specification

    The 2020 edition of ISO 32000-2 incorporates corrections. The PDF Association provides access to the specification, supporting implementation against the actual document model.

PDF compared

Different formats, different trade-offs. Choose for the image and the workflow.

SVG

PDF vs SVG

SVG keeps shapes and text as vector descriptions, which remain sharp when resized. It suits diagrams and symbols; converting a photo into an SVG wrapper does not reconstruct editable vector shapes.

TIFF

PDF vs TIFF

TIFF provides tagged raster storage with multiple images and several sample types and compression schemes. It is a useful interchange choice for scanning and high-precision editing, but the receiving tool must support the particular TIFF variant.

PNG

PDF vs PNG

PNG preserves decoded pixels losslessly and can carry alpha. It is useful for transparent graphics and screenshots; it does not preserve editable document layers or camera sensor data, and photographic files can be large.

JPEG

PDF vs JPEG

JPEG makes a compact photographic delivery file, but ordinary JPEG discards detail and has no alpha. Keep the richer source for editing and use JPEG when the receiving workflow expects an opaque photo.

PDF FAQ

What does this format store?

Adobe created PDF to exchange documents with a stable page appearance across systems. A page description can combine text, fonts, vector paths and raster images. PDF is therefore not a single image codec, and a page can contain several pictures or no raster picture at all.

How does compression affect quality?

PDF has no single compression quality. Different streams may use lossless or lossy filters; page rasterization can remove document structure even when the resulting pixels are encoded losslessly.

Is extracting an image the same as rendering a PDF page?

No. Extraction reads a particular embedded image stream. Rendering composites page text, paths, images, clipping and transparency at a selected output resolution.

What should I check before opening the file?

Check the PDF version, encryption permissions, fonts and rendering features in the reader. The ISO standard defines the document format; it does not guarantee every reader implements every optional facility.

What changes when I export to another format?

Rasterization fixes page resolution and loses selectable text, vector editability and document navigation. A single image export also selects one page. Creating PDF from a picture wraps pixels in a page; it does not turn them into editable text or vectors.

When is this format useful?

Use PDF for print layouts, reports and documents that must retain page structure. To make an image, choose the page, resolution and background and render its composition. Extracting an embedded picture is a different operation and may omit text, clipping or other page elements. Keep the PDF if selectable text and multiple pages matter.

Sources