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Table of Contents

• Doctron description
• Online experience
• Convert preview
• Encourage
• Features
• Installing
• Quick Start
  • Html convert to pdf - basic - custom size - support params
  • Html convert to image - basic - custom size - support params
  • Pdf add watermark - add image watermark - support params
  • Pdf convert to image - coming soon
• Doctron Client
  • Doctron go client - doctron-client-go
  • Doctron php client - doctron-client-php
• License
• Thanks JetBrains provide free GoLand IDE

Doctron description

Doctron is a Docker-powered,serverless,sample,fast,high quality document convert tool.Supply html convert to pdf(html2pdf), html convert to image(html2image like jpeg,png),which using chrome(Chromium) kernel, add watermarks to pdf, convert pdf to images etc.

Online experience

open the following website to have a try. Conversion may be slower due to low server configuration. Doctron Live Demo

Convert preview

• source website: https://support.apple.com/zh-cn/iphone-12-and-iphone-12-pro-service-program-for-no-sound-issues
• preview:
• 

Encourage

If you feel doctron is not bad, give me a star and fork.Star and fork is my greatest encouragement！

Features

• Html convert to pdf/image using chrome kernel to guarantee what you see is what you get.
• Easy deployment.(Using docker,kubernetes.)
• Rich transformation parameters.
• Customize page size from html convert to pdf or image.
• Serverless supported.

Installing

• Using docker

#using default config
docker run -p 8080:8080 --rm --name doctron-alpine lampnick/doctron  
#using custom config
docker run -p 8080:8080 --rm --name doctron-alpine \
-v /path/to/doctron/conf/doctron.yaml:/doctron.yaml \
lampnick/doctron  

• Using k8s

kubectl apply -f https://raw.githubusercontent.com/lampnick/doctron/master/manifests/k8s-doctron.yaml

• From source code

First step：
download google-chrome，add  google-chrome path to system PATH .
Second step：
git clone https://github.com/lampnick/doctron.git
cd doctron
go run main.go --config=./conf/default.yaml

• install doctron using go get

First step：
download google-chrome，add  google-chrome path to system PATH .
Second step：
go get -v github.com/lampnick/doctron
When finished then directly run
doctron --config=./conf/default.yaml

Quick Start

Html convert to pdf

basic

http://127.0.0.1:8080/convert/html2pdf?u=doctron&p=lampnick&url=<url>  

custom size

http://127.0.0.1:8080/convert/html2pdf?u=doctron&p=lampnick&url=<url>&marginTop=0&marginLeft=0&marginRight=0&marginbottom=0&paperwidth=4.1  

support params

• u/username // doctron username
• p/password // doctron password
• uploadKey // upload to oss key
• url // need convert html url
• landscape // Paper orientation. core.Defaults to false.
• displayHeaderFooter // Display header and footer. core.Defaults to false.
• printBackground // Print background graphics. core.Defaults to false.
• scale // Scale of the webpage rendering. core.Defaults to 1.
• paperWidth // Paper width in inches. core.Defaults to 8.5 inches.
• paperHeight // Paper height in inches. core.Defaults to 11 inches.
• marginTop // Top margin in inches. core.Defaults to 1cm (~0.4 inches).
• marginBottom // Bottom margin in inches. core.Defaults to 1cm (~0.4 inches).
• marginLeft // Left margin in inches. core.Defaults to 1cm (~0.4 inches).
• marginRight // Right margin in inches. core.Defaults to 1cm (~0.4 inches).
• pageRanges // Paper ranges to print, e.g., '1-5, 8, 11-13'. core.Defaults to the empty string, which means print all pages.
• ignoreInvalidPageRanges // Whether to silently ignore invalid but successfully parsed page ranges, such as '3-2'. core.Defaults to false.
• headerTemplate // HTML template for the print header. Should be valid HTML markup with following classes used to inject printing values into them: - date: formatted print date - title: document title - url: document location - pageNumber: current page number - totalPages: total pages in the document For example, would generate span containing the title.
• footerTemplate // HTML template for the print footer. Should use the same format as the headerTemplate.
• preferCSSPageSize // Whether or not to prefer page size as defined by css. core.Defaults to false, in which case the content will be scaled to fit the paper size. (Generally, it can solve the problem that the single page converted to PDF will be inconsistent with the specified size)
• WaitingTime // Waiting time after the page loaded. Default 0 means not wait. unit:Millisecond

Html convert to image

basic

http://127.0.0.1:8080/convert/html2image?u=doctron&p=lampnick&url=<url>  

custom size

http://127.0.0.1:8080/convert/html2image?u=doctron&p=lampnick&url=<url>&customClip=true&clipX=0&clipY=0&clipWidth=400&clipHeight=1500&clipScale=2&format=jpeg&Quality=80  

support params

• u/username // doctron username
• p/password // doctron password
• uploadKey // upload to oss key
• url // need convert html url
• format // Image compression format (defaults to png).
• quality // Compression quality from range [0..100] (jpeg only).
• customClip //if set this value, the below clip will work,otherwise not work!
• clipX // Capture the screenshot of a given region only.X offset in device independent pixels (dip).
• clipY // Capture the screenshot of a given region only.Y offset in device independent pixels (dip).
• clipWidth // Capture the screenshot of a given region only.Rectangle width in device independent pixels (dip).
• clipHeight // Capture the screenshot of a given region only.Rectangle height in device independent pixels (dip). WaitingTime // Waiting time after the page loaded. Default 0 means not wait. unit:Millisecond

Pdf add watermark

add image watermark

http://127.0.0.1:8080/convert/pdfAddWatermark?u=doctron&p=lampnick&url=<pdf url>&imageUrl=<image url>

support params

• u/username // doctron username
• p/password // doctron password
• uploadKey // upload to oss key
• url // need convert html url
• imageUrl // watermark image url,support png/jpeg

Pdf convert to image

coming soon

Doctron Client

Doctron go client

doctron-client-go

Doctron php client

doctron-client-php

License

Doctron is released under the Apache 2.0 license. See LICENSE.txt

Thanks JetBrains provide free GoLand IDE