Why does my JPEG photo come out rotated?

Most cameras and phones embed an EXIF orientation tag in JPEGs that tells viewers to rotate the image at display time. PDFCatalyst respects that tag — it rasterises every image (including JPEGs) through a canvas before embedding, which applies the EXIF rotation automatically. So a JPEG that displays upright in your image viewer will display upright in the exported PDF, even though the raw bytes are stored sideways.

Can I add the same logo to every page at once?

Today, no — images are placed per-page individually. For "stamp the logo on every page" workflows, the Watermark tool is faster (text watermark on every page is one click). Image-on-every-page is on the v1.1 backlog. For now, drop the logo on page 1, select it, copy (Cmd/Ctrl+C), navigate to each subsequent page, paste — about 5 seconds per page.

Will my image's transparency be preserved?

Yes for PNG, WebP, and GIF — the alpha channel survives the export and the image overlays the underlying PDF page without a white box around it. JPEG doesn't support transparency in the spec, so JPEGs always export as opaque rectangles. For logos, signatures, and stamps you want to overlay cleanly, use PNG with a transparent background.

How big can the image be?

No hard limit — the image is held in browser memory along with the PDF, so the practical cap is your machine's RAM. A 10 MB PNG plus a 10 MB PDF runs comfortably on most laptops. Very large images (50 MB+) may slow down resize / drag operations because each gesture re-rasterises through the canvas; in that case, downscale the image in your image editor first.

Do my files leave my browser?

No — at all, today. All editing runs client-side via pdf.js and pdf-lib. The v1.1 paid tier will add opt-in cloud OCR / unlock; even then files are deleted within 60 seconds.

Yes. Everything in the editor today (annotations, AcroForm fill, watermark, page numbers, split, merge, export) is free forever. Paid tier ($1.99/document) covers cloud OCR + AI autofill on scanned PDFs in v1.1.

How do I keep my work between sessions?

Edits autosave to your browser's IndexedDB every 500 ms. The editor URL becomes /app?s=… — copy or bookmark to return. Sessions live entirely on your device.

Can I use this for sensitive documents — tax, medical, legal?

Yes — that's the point of client-side execution. Your tax return, medical record, or legal contract literally never touches our infrastructure. Verify in DevTools' Network tab.

Does Vietnamese text export correctly?

Yes. The export pipeline auto-fetches Roboto-Vietnamese (with full diacritic coverage) when any annotation contains non-ASCII text.

Add Image to PDF

Add an image to a PDF online. Free, no upload.

Drop a logo, stamp, photo, or screenshot onto any page. PNG, JPEG, WebP, and GIF all work. Drag to position, corner-handles to resize, rotate handle to rotate. The image is embedded directly into the exported PDF — visible in any viewer.

Drop your PDF here

or click to browse · 10 MB max free · stays in your browser

Open the free editor How it works

Files never leave your browserNo signup requiredPNG · JPEG · WebP · GIF · transparent backgrounds preserved

FREE TIER

$0 forever

Add unlimited images · drag / resize / rotate · client-side

Open editor

STAMP EVERY PAGE · v1.1

$1.99 / document

Apply image to every page in one operation · ships with v1.1

See pricing

The full guide

Everything you need to know about adding images to PDFs.

When to add an image to a PDF

Four common use cases drive most image-on-PDF additions: stamping a company logo onto every contract or invoice, adding a "PAID" or "APPROVED" badge to a finalised document, dropping a photo of an ID or supporting document onto a form (visa applications, insurance claims), and pasting a chart or screenshot from another application into a PDF report. PDFCatalyst handles all four with the same drag-and-drop image tool — pick a file, click on the page, the image appears.

Supported formats — and how WebP / GIF work

PNG and JPEG are embedded directly via pdf-lib (the PDF specification natively supports both). WebP and GIF are rasterised through an offscreen canvas at export time and embedded as PNG — this means a Chrome screenshot saved as `.webp` or an animated GIF's first frame both ship in the exported PDF correctly. SVG and other vector formats are rasterised the same way; the result is a flat raster, not a scalable vector.

Resizing and rotating images

Drop the image, click to select it, then use the corner handles to resize (proportional by default; hold Shift to free-resize) and the rotate handle (the small circle above the bounding box) to rotate to any angle. The rotation is applied at export via pdf-lib's rotate parameter, so the image renders at the correct angle in any PDF viewer. Internally the image is rasterised once at upload and the resize is just CSS-style scaling — there's no quality loss from re-encoding.

Image transparency survives export

PNGs with transparent backgrounds (logos with no background, signature scans on transparent paper) keep their alpha channel through the export. The PDF embeds the alpha-mask correctly so the image overlays the underlying page without a white box around it. WebP and GIF transparencies also survive — the canvas rasterisation step preserves alpha by default. JPEGs don't support transparency by spec, so they always come out as opaque rectangles.

Privacy: images never leave your browser

Server-side image-on-PDF tools have to upload BOTH your PDF AND your image separately, plus the merged result comes back over the network. Two upload round-trips for a one-click operation. PDFCatalyst reads the image as a data URL, embeds it into the PDF in browser memory, and downloads the result directly. Neither the PDF nor the image touches our infrastructure. Verify in DevTools' Network tab while you add an image.

How it works

Add Image to PDF in 4 steps.

01
Open the PDF
Drop your PDF onto the editor at /app or click to browse from your device.
02
Pick the Image tool
Click the image icon in the left toolbar. The file picker opens — choose PNG, JPEG, WebP, or GIF.
03
Click to place
Click anywhere on the page to drop the image at that position. Drag to move, corners to resize, rotate handle to rotate.
04
Download
Click Download to save the PDF with the image embedded. The image renders at the same position in any viewer.

Frequently asked questions

Questions about this tool.

PNG and JPEG are embedded directly. WebP, GIF, SVG, and AVIF are rasterised through an offscreen canvas at export time and embedded as PNG — this means screenshots Chrome saves as `.webp` (the default on Windows) work without manual conversion. Animated GIFs ship as their first frame. BMP and TIFF will work if your browser can decode them via `<img>` (Chrome and Edge can; Safari is more selective).

Add an image to your PDF in your browser. Free.

Drop the image, click to place, download. Logos, stamps, photos — all PNG / JPEG / WebP / GIF.

Open the free editor