¿Qué es Conversor de PNG a PDF?
A PNG to PDF converter turns image files into a PDF document — each image becomes one page. It solves an everyday problem: images are awkward to share as documents. Email clients display them inline at random sizes, application portals reject them, printers scale them unpredictably, and a folder of screenshots has no fixed order. Converting images to a single PDF produces one tidy, ordered, print-ready file. Our converter supports PNG, JPG, and WebP images and runs entirely in your browser, so your photos and scans are never uploaded anywhere.
You get control over how images are placed: choose A4 or US Letter pages with the image scaled to fit (the right choice when the PDF will be printed), or "Fit to image" pages where each PDF page exactly matches its image's dimensions (the right choice for screenshots and digital-only documents). Orientation can be fixed to portrait or landscape, or detected automatically per image, and you can add a small or large white margin around each image.
Image quality is preserved through the conversion. JPG images are embedded in the PDF byte-for-byte with no recompression, and PNG images keep their lossless data including transparency. WebP images are converted to lossless PNG before embedding. The result is a PDF that looks exactly like your originals — not a degraded copy run through a server-side compressor.
Casos de uso
Aquí tienes las formas más comunes en que la gente usa Conversor de PNG a PDF todos los días.
Scanned Documents from a Phone
Photograph each page of a signed contract, receipt stack, or ID document with your phone, then convert the photos into a single ordered PDF. The auto-orientation option keeps portrait pages portrait and landscape pages landscape, and the result is one file you can email instead of a dozen loose photos.
Screenshots into Documentation
Turn a sequence of screenshots — a bug reproduction, a setup walkthrough, a design review — into one ordered PDF. Use "Fit to image" so each page matches the screenshot exactly, with no awkward white space or downscaling.
Application Portals That Require PDF
Visa applications, university admissions, and government forms frequently demand PDF uploads and reject PNG or JPG files. Convert your scanned certificates and photos to PDF in seconds without installing anything or trusting a third-party server with identity documents.
Print-Ready Photo Sheets
Put photos onto A4 or Letter pages with a margin so they print correctly on any printer. The image is centered and scaled to fit within the printable area, avoiding the cropped edges that come from printing raw images.
Design Mockup Delivery
Designers can convert exported PNG mockups into a single client-facing PDF that opens reliably everywhere, keeps slides in order, and is easy to annotate in any PDF viewer — no zip file of loose images.
Archiving Whiteboards and Notes
Photos of whiteboard sessions, paper notebooks, and flip charts pile up in camera rolls and get lost. Converting each meeting's photos into one dated PDF makes them searchable in your file system and easy to attach to meeting notes.
Ejemplos
Three Phone Photos into One Scan PDF
Add the three photos of a signed agreement in page order, choose A4 with a small margin, and convert. The result is a clean three-page document.
page1.jpg, page2.jpg, page3.jpg images.pdf — 3 A4 pages, photos centered Screenshots at Native Size
Add five PNG screenshots and choose "Fit to image". Each PDF page exactly matches its screenshot dimensions — pixel-perfect with no scaling.
5 PNG screenshots (2560×1440) images.pdf — 5 pages sized to each image Single WebP to PDF
Drop in one WebP image. It is converted to lossless PNG internally and embedded; the output file is named after the image.
diagram.webp diagram.pdf — 1 page Conversor de PNG a PDF frente a iLovePDF JPG to PDF
iLovePDF's image converter is popular but server-based; here is how the in-browser approach compares.
| Característica | Toolorah | iLovePDF JPG to PDF |
|---|---|---|
| Images uploaded to a server | Never — converted locally | Yes |
| WebP support | Yes | No — JPG only on the main tool |
| Mix PNG/JPG/WebP in one PDF | Yes | Limited |
| Quality loss | None — original bytes embedded | Possible recompression |
| Page size control | A4, Letter, fit-to-image + margins | A4, Letter, fit |
| Free usage limits | Unlimited | Task limits on free tier |
| Speed on large batches | No upload wait | Upload + queue + download |
Consejos para usar Conversor de PNG a PDF
- The list order is the page order — use the ↑ and ↓ arrows to fix the sequence before converting.
- Use "Fit to image" for screenshots and digital documents; use A4 or Letter when the PDF will be printed.
- Choose JPG sources for photos (smaller files) and PNG for screenshots or graphics with text (sharper edges).
- PNG transparency is preserved in the PDF — transparent areas show the white page behind them.
- For a multi-document workflow, convert images to PDF here, then combine with other PDFs using the PDF Merger.
Preguntas frecuentes
Are my images uploaded anywhere?
No. The conversion runs completely in your browser: images are read into memory on your device, embedded into a PDF generated locally, and the file downloads directly from your own machine. No image data ever touches a server, which makes the tool safe for ID documents, medical scans, and private photos.
Does converting reduce image quality?
No. JPG files are embedded into the PDF without recompression — the exact original bytes are used, so there is zero generational quality loss. PNG files keep their lossless data and transparency. WebP files are converted to lossless PNG before embedding. The PDF displays your images at their full original quality.
Which image formats are supported?
PNG, JPG/JPEG, and WebP. Despite the tool's name, all three formats can be mixed freely in one conversion — drop in a JPG photo, a PNG screenshot, and a WebP export together and each becomes a page. HEIC (iPhone) photos are not supported directly; share or export them as JPG first, which iOS does automatically in most share flows.
How do multiple images become pages?
Each image becomes exactly one page, in the order shown in the list. You can reorder with the arrow buttons and remove images before converting. There is no limit on the number of images — a hundred screenshots become a hundred-page PDF.
What does "Fit to image" page size do?
Instead of placing images on a fixed A4 or Letter page, each PDF page is created at the image's own dimensions (at standard 96 DPI screen resolution, plus the margin you chose). A 1920×1080 screenshot produces a 1920×1080-proportioned page with no white borders. This is ideal for digital-only documents; for printing, fixed page sizes are the safer choice.
What resolution should my scans be for printing?
For an A4 page, aim for at least 2480×3508 pixels (300 DPI) for crisp print output; 150 DPI (1240×1754) is acceptable for text documents. Phone cameras comfortably exceed this. The converter scales images to fit the page while preserving aspect ratio, so higher-resolution sources simply print sharper.
Can I convert a PDF back to images?
This tool converts in one direction — images into PDF. To go the other way you need a PDF-to-image converter or you can take screenshots of PDF pages. For editing an existing PDF (adding text or covering content), use the PDF Editor instead, and for pulling pages out of a PDF use the PDF Splitter.
Is there a file size limit?
No artificial limit. Because everything is processed on your device, the practical ceiling is your browser's memory. Converting dozens of full-resolution phone photos (5–10 MB each) works fine on a modern laptop or phone; if the browser slows down on very large batches, convert in two halves and merge the results with the PDF Merger.