DGNum/Stirling-PDF
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Stirling-PDF/src/main/resources/templates/multi-tool.html

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Created a page for visually editing individual pages of a pdf
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<!DOCTYPE html>
<html th:lang="${#locale.toString()}" th:lang-direction="#{language.direction}" xmlns:th="http://www.thymeleaf.org">
init icons
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<th:block th:insert="~{fragments/common :: head(title=#{multiTool.title})}"></th:block>
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<body>
<div id="page-container">
<div id="content-wrap">
<div th:insert="~{fragments/navbar.html :: navbar}"></div>
<br> <br>
<div class="container">
<div class="row justify-content-center">
use horizontal scroll for pages container By making small thumbnails and aligning everything horizontally the space on the screen is used better.
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<h2 th:text="#{multiTool.header}"></h2>
<div class="col-md-12" style="text-align: center" id="pages-container"></div>
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<div class="col-md-6" style="text-align: center">
<div id="global-buttons-container">
<button class="btn btn-primary" onclick="addPdfs()">
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-file-earmark-plus" viewBox="0 0 16 16">
<path d="M8 6.5a.5.5 0 0 1 .5.5v1.5H10a.5.5 0 0 1 0 1H8.5V11a.5.5 0 0 1-1 0V9.5H6a.5.5 0 0 1 0-1h1.5V7a.5.5 0 0 1 .5-.5z"/>
<path d="M14 4.5V14a2 2 0 0 1-2 2H4a2 2 0 0 1-2-2V2a2 2 0 0 1 2-2h5.5L14 4.5zm-3 0A1.5 1.5 0 0 1 9.5 3V1H4a1 1 0 0 0-1 1v12a1 1 0 0 0 1 1h8a1 1 0 0 0 1-1V4.5h-2z"/>
</svg>
</button>
fixes
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<button class="btn btn-secondary enable-on-file" onclick="rotateAll(-90)" disabled>
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<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-counterclockwise" viewBox="0 0 16 16">
<path fill-rule="evenodd" d="M8 3a5 5 0 1 1-4.546 2.914.5.5 0 0 0-.908-.417A6 6 0 1 0 8 2v1z" />
<path d="M8 4.466V.534a.25.25 0 0 0-.41-.192L5.23 2.308a.25.25 0 0 0 0 .384l2.36 1.966A.25.25 0 0 0 8 4.466z" />
</svg>
</button>
fixes
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<button class="btn btn-secondary enable-on-file" onclick="rotateAll(90)" disabled>
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<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-clockwise" viewBox="0 0 16 16">
<path fill-rule="evenodd" d="M8 3a5 5 0 1 0 4.546 2.914.5.5 0 0 1 .908-.417A6 6 0 1 1 8 2v1z" />
<path d="M8 4.466V.534a.25.25 0 0 1 .41-.192l2.36 1.966c.12.1.12.284 0 .384L8.41 4.658A.25.25 0 0 1 8 4.466z" />
</svg>
</button>
fixes
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<button id="export-button" class="btn btn-primary enable-on-file" onclick="exportPdf()" disabled>
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<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-download" viewBox="0 0 16 16">
<path d="M.5 9.9a.5.5 0 0 1 .5.5v2.5a1 1 0 0 0 1 1h12a1 1 0 0 0 1-1v-2.5a.5.5 0 0 1 1 0v2.5a2 2 0 0 1-2 2H2a2 2 0 0 1-2-2v-2.5a.5.5 0 0 1 .5-.5z"/>
<path d="M7.646 11.854a.5.5 0 0 0 .708 0l3-3a.5.5 0 0 0-.708-.708L8.5 10.293V1.5a.5.5 0 0 0-1 0v8.793L5.354 8.146a.5.5 0 1 0-.708.708l3 3z"/>
</svg>
</button>
</div>
</div>
use horizontal scroll for pages container By making small thumbnails and aligning everything horizontally the space on the screen is used better.
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</div>
</div>
</div>
<div th:insert="~{fragments/footer.html :: footer}"></div>
</div>
<script>
fixes
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var fileName = null;
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const pagesContainer = document.getElementById("pages-container");
use horizontal scroll for pages container By making small thumbnails and aligning everything horizontally the space on the screen is used better.
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var scrollDelta = 0; // variable to store the accumulated scroll delta
var isScrolling = false; // variable to track if scroll is already in progress
pagesContainer.addEventListener("wheel", function(e) {
e.preventDefault(); // prevent default mousewheel behavior
fixes
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// Accumulate the horizontal scroll delta
scrollDelta -= e.deltaX || e.wheelDeltaX || -e.deltaY || -e.wheelDeltaY;
// If scroll is not already in progress, start the scroll loop
if (!isScrolling) {
isScrolling = true;
requestAnimationFrame(scrollLoop);
}
});
function scrollLoop() {
// Scroll the div horizontally by a fraction of the accumulated scroll delta
pagesContainer.scrollLeft += scrollDelta * 0.1;
// Reduce the accumulated scroll delta by a fraction
scrollDelta *= 0.9;
// If scroll delta is still significant, continue the scroll loop
if (Math.abs(scrollDelta) > 0.1) {
requestAnimationFrame(scrollLoop);
} else {
isScrolling = false; // Reset scroll in progress flag
}
}
fixes
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function addPdfs(nextSiblingElement) {
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var input = document.createElement('input');
input.type = 'file';
input.multiple = true;
fixes
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input.setAttribute("accept", "application/pdf");
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input.onchange = async(e) => {
const files = e.target.files;
fixes
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fileName = files[0].name;
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for (var i=0; i < files.length; i++) {
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addPdfFile(files[i], nextSiblingElement);
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}
fixes
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document.querySelectorAll(".enable-on-file").forEach(element => {
element.disabled = false;
});
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}
input.click();
}
fixes
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async function addPdfFile(file, nextSiblingElement) {
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const { renderer, pdfDocument } = await loadFile(file);
fixes
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const moveUpButtonCallback = e => {
var imgContainer = e.target;
while (!imgContainer.classList.contains("page-container")) {
imgContainer = imgContainer.parentNode;
}
const sibling = imgContainer.previousSibling;
if (sibling) {
pagesContainer.removeChild(imgContainer);
pagesContainer.insertBefore(imgContainer, sibling);
imgContainer.scrollIntoView({
behavior: "instant",
block: "center",
})
}
};
const moveDownButtonCallback = e => {
var imgContainer = e.target;
while (!imgContainer.classList.contains("page-container")) {
imgContainer = imgContainer.parentNode;
}
const sibling = imgContainer.nextSibling;
if (sibling) {
pagesContainer.removeChild(imgContainer);
if (sibling.nextSibling) {
pagesContainer.insertBefore(imgContainer, sibling.nextSibling);
} else {
pagesContainer.appendChild(imgContainer)
}
imgContainer.scrollIntoView({
behavior: "instant",
block: "center",
})
}
};
const rotateCCWButtonCallback = e => {
var imgContainer = e.target;
while (!imgContainer.classList.contains("page-container")) {
imgContainer = imgContainer.parentNode;
}
const img = imgContainer.querySelector("img");
rotateElement(img, -90)
};
const rotateCWButtonCallback = e => {
var imgContainer = e.target;
while (!imgContainer.classList.contains("page-container")) {
imgContainer = imgContainer.parentNode;
}
const img = imgContainer.querySelector("img");
rotateElement(img, 90)
};
const deletePageButtonCallback = e => {
var imgContainer = e.target;
while (!imgContainer.classList.contains("page-container")) {
imgContainer = imgContainer.parentNode;
}
pagesContainer.removeChild(imgContainer);
};
const insertFileButtonCallback = e => {
var imgContainer = e.target;
while (!imgContainer.classList.contains("page-container")) {
imgContainer = imgContainer.parentNode;
}
addPdfs(imgContainer)
};
Created a page for visually editing individual pages of a pdf
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for (var i=0; i < renderer.pageCount; i++) {
const div = document.createElement('div');
div.classList.add("page-container");
var img = document.createElement('img');
img.src = await renderer.renderPage(i);
img.pageIdx = i;
img.rend = renderer;
img.doc = pdfDocument;
div.appendChild(img);
const buttonContainer = document.createElement('div');
buttonContainer.classList.add("button-container");
fixes
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const moveUp = document.createElement('button');
use horizontal scroll for pages container By making small thumbnails and aligning everything horizontally the space on the screen is used better.
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moveUp.classList.add("move-left-button","btn", "btn-secondary");
moveUp.innerHTML = '<i class="bi bi-arrow-left-short"></i>';
fixes
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moveUp.onclick = moveUpButtonCallback;
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buttonContainer.appendChild(moveUp);
const moveDown = document.createElement('button');
use horizontal scroll for pages container By making small thumbnails and aligning everything horizontally the space on the screen is used better.
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moveDown.classList.add("move-right-button","btn", "btn-secondary");
moveDown.innerHTML = '<i class="bi bi-arrow-right-short"></i>';
fixes
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moveDown.onclick = moveDownButtonCallback;
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buttonContainer.appendChild(moveDown);
const rotateCCW = document.createElement('button');
rotateCCW.classList.add("btn", "btn-secondary");
rotateCCW.innerHTML = `<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-counterclockwise" viewBox="0 0 16 16">
fixes
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<path fill-rule="evenodd" d="M8 3a5 5 0 1 1-4.546 2.914.5.5 0 0 0-.908-.417A6 6 0 1 0 8 2v1z" />
<path d="M8 4.466V.534a.25.25 0 0 0-.41-.192L5.23 2.308a.25.25 0 0 0 0 .384l2.36 1.966A.25.25 0 0 0 8 4.466z" />
</svg>`;
rotateCCW.onclick = rotateCCWButtonCallback;
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buttonContainer.appendChild(rotateCCW);
const rotateCW = document.createElement('button');
rotateCW.classList.add("btn", "btn-secondary");
rotateCW.innerHTML = `<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-clockwise" viewBox="0 0 16 16">
fixes
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<path fill-rule="evenodd" d="M8 3a5 5 0 1 0 4.546 2.914.5.5 0 0 1 .908-.417A6 6 0 1 1 8 2v1z" />
<path d="M8 4.466V.534a.25.25 0 0 1 .41-.192l2.36 1.966c.12.1.12.284 0 .384L8.41 4.658A.25.25 0 0 1 8 4.466z" />
</svg>`;
rotateCW.onclick = rotateCWButtonCallback;
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buttonContainer.appendChild(rotateCW);
const deletePage = document.createElement('button');
deletePage.classList.add("btn", "btn-secondary");
deletePage.innerHTML = `<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-trash" viewBox="0 0 16 16">
<path d="M5.5 5.5A.5.5 0 0 1 6 6v6a.5.5 0 0 1-1 0V6a.5.5 0 0 1 .5-.5Zm2.5 0a.5.5 0 0 1 .5.5v6a.5.5 0 0 1-1 0V6a.5.5 0 0 1 .5-.5Zm3 .5a.5.5 0 0 0-1 0v6a.5.5 0 0 0 1 0V6Z"/>
<path d="M14.5 3a1 1 0 0 1-1 1H13v9a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V4h-.5a1 1 0 0 1-1-1V2a1 1 0 0 1 1-1H6a1 1 0 0 1 1-1h2a1 1 0 0 1 1 1h3.5a1 1 0 0 1 1 1v1ZM4.118 4 4 4.059V13a1 1 0 0 0 1 1h6a1 1 0 0 0 1-1V4.059L11.882 4H4.118ZM2.5 3h11V2h-11v1Z"/>
</svg>`;
fixes
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deletePage.onclick = deletePageButtonCallback;
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buttonContainer.appendChild(deletePage);
div.appendChild(buttonContainer);
fixes
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const insertFileButtonContainer = document.createElement('div');
use horizontal scroll for pages container By making small thumbnails and aligning everything horizontally the space on the screen is used better.
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insertFileButtonContainer.classList.add("insert-file-button-container","left", "align-center-left");
fixes
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const insertFileButton = document.createElement('button');
centre align, colour stuff and home icons
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insertFileButton.classList.add("btn", "btn-primary", "insert-file-button");
fixes
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insertFileButton.innerHTML = `<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-file-earmark-plus" viewBox="0 0 16 16">
<path d="M8 6.5a.5.5 0 0 1 .5.5v1.5H10a.5.5 0 0 1 0 1H8.5V11a.5.5 0 0 1-1 0V9.5H6a.5.5 0 0 1 0-1h1.5V7a.5.5 0 0 1 .5-.5z"/>
<path d="M14 4.5V14a2 2 0 0 1-2 2H4a2 2 0 0 1-2-2V2a2 2 0 0 1 2-2h5.5L14 4.5zm-3 0A1.5 1.5 0 0 1 9.5 3V1H4a1 1 0 0 0-1 1v12a1 1 0 0 0 1 1h8a1 1 0 0 0 1-1V4.5h-2z"/>
</svg>`;
insertFileButton.onclick = insertFileButtonCallback;
insertFileButtonContainer.appendChild(insertFileButton);
use horizontal scroll for pages container By making small thumbnails and aligning everything horizontally the space on the screen is used better.
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fixes
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div.appendChild(insertFileButtonContainer);
use horizontal scroll for pages container By making small thumbnails and aligning everything horizontally the space on the screen is used better.
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// add this button to every element, but only show it on the last one :D
const insertFileButtonRightContainer = document.createElement('div');
insertFileButtonRightContainer.classList.add("insert-file-button-container","right", "align-center-right");
const insertFileButtonRight = document.createElement('button');
insertFileButtonRight.classList.add("btn", "btn-primary", "insert-file-button");
insertFileButtonRight.innerHTML = `<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-file-earmark-plus" viewBox="0 0 16 16">
<path d="M8 6.5a.5.5 0 0 1 .5.5v1.5H10a.5.5 0 0 1 0 1H8.5V11a.5.5 0 0 1-1 0V9.5H6a.5.5 0 0 1 0-1h1.5V7a.5.5 0 0 1 .5-.5z"/>
<path d="M14 4.5V14a2 2 0 0 1-2 2H4a2 2 0 0 1-2-2V2a2 2 0 0 1 2-2h5.5L14 4.5zm-3 0A1.5 1.5 0 0 1 9.5 3V1H4a1 1 0 0 0-1 1v12a1 1 0 0 0 1 1h8a1 1 0 0 0 1-1V4.5h-2z"/>
insertFileButtonRight</svg>`;
insertFileButtonRight.onclick = () => addPdfs();
insertFileButtonRightContainer.appendChild(insertFileButtonRight);
div.appendChild(insertFileButtonRightContainer);
fixes
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if (nextSiblingElement) {
pagesContainer.insertBefore(div, nextSiblingElement);
} else {
pagesContainer.appendChild(div);
}
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}
}
function rotateElement(element, deg) {
var lastTransform = element.style.rotate;
if (!lastTransform) {
lastTransform = "0";
}
const lastAngle = parseInt(lastTransform.replace(/[^\d-]/g, ''));
const newAngle = lastAngle + deg;
element.style.rotate = newAngle + "deg";
}
function rotateAll(deg) {
for (var i=0; i<pagesContainer.childNodes.length; i++) {
const img = pagesContainer.childNodes[i].querySelector("img");
fixes
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if (!img) continue;
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rotateElement(img, deg)
}
}
async function exportPdf() {
const pdfDoc = await PDFLib.PDFDocument.create();
for (var i=0; i<pagesContainer.childNodes.length; i++) {
const img = pagesContainer.childNodes[i].querySelector("img");
fixes
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if (!img) continue;
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const pages = await pdfDoc.copyPages(img.doc, [img.pageIdx])
const page = pages[0];
const rotation = img.style.rotate;
if (rotation) {
const rotationAngle = parseInt(rotation.replace(/[^\d-]/g, ''));
page.setRotation(PDFLib.degrees(page.getRotation().angle + rotationAngle))
}
pdfDoc.addPage(page);
}
fixes to saving and things
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const pdfBytes = await pdfDoc.save();
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const pdfBlob = new Blob([pdfBytes], { type: 'application/pdf' });
const url = URL.createObjectURL(pdfBlob);
fixes to saving and things
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const downloadOption = localStorage.getItem('downloadOption');
if (downloadOption === 'sameWindow') {
// Open the file in the same window
window.location.href = url;
} else if (downloadOption === 'newWindow') {
// Open the file in a new window
window.open(url, '_blank');
} else {
// Download the file
const downloadLink = document.createElement('a');
downloadLink.href = url;
downloadLink.download = fileName ? fileName : 'managed.pdf';
downloadLink.click();
}
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}
async function loadFile(file) {
var objectUrl = URL.createObjectURL(file);
var pdfDocument = await toPdfLib(objectUrl);
var renderer = await toRenderer(objectUrl);
return { renderer, pdfDocument };
}
async function toPdfLib(objectUrl) {
const existingPdfBytes = await fetch(objectUrl).then(res => res.arrayBuffer());
const pdfDoc = await PDFLib.PDFDocument.load(existingPdfBytes);
return pdfDoc;
}
async function toRenderer(objectUrl) {
const pdf = await pdfjsLib.getDocument(objectUrl).promise;
return {
document: pdf,
pageCount: pdf.numPages,
renderPage: async function(pageIdx) {
const page = await this.document.getPage(pageIdx+1);
const canvas = document.createElement("canvas");
// set the canvas size to the size of the page
if (page.rotate == 90 || page.rotate == 270) {
canvas.width = page.view[3];
canvas.height = page.view[2];
} else {
canvas.width = page.view[2];
canvas.height = page.view[3];
}
// render the page onto the canvas
var renderContext = {
canvasContext: canvas.getContext("2d"),
viewport: page.getViewport({ scale: 1 })
};
await page.render(renderContext).promise;
return canvas.toDataURL();
}
};
}
</script>
<style>
#global-buttons-container {
display: flex;
gap: 10px;
align-items: start;
background: rgba(13, 110, 253, 0.1);
border: 1px solid rgba(0, 0, 0, .25);
backdrop-filter: blur(2px);
top: 10px;
z-index: 10;
padding: 10px;
border-radius: 8px;
}
#global-buttons-container > * {
padding: 0.6rem 0.75rem;
}
#global-buttons-container svg {
width: 20px;
height: 20px;
}
#export-button {
margin-left: auto;
}
#pages-container {
use horizontal scroll for pages container By making small thumbnails and aligning everything horizontally the space on the screen is used better.
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--background-color: rgba(0, 0, 0, 0.046);
--scroll-bar-color: #f1f1f1;
--scroll-bar-thumb: #888;
--scroll-bar-thumb-hover: #555;
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width: 100%;
display: flex;
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padding: 10px 25px;
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gap: 0px;
align-items: center;
margin: 30px 0;
use horizontal scroll for pages container By making small thumbnails and aligning everything horizontally the space on the screen is used better.
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overflow-y: hidden;
overflow-x: auto;
min-height: 275px;
background-color: var(--background-color);
border-radius: 10px;
}
/* width */
#pages-container::-webkit-scrollbar {
width: 10px;
height: 10px;
}
/* Track */
#pages-container::-webkit-scrollbar-track {
background: var(--scroll-bar-color);
}
/* Handle */
#pages-container::-webkit-scrollbar-thumb {
border-radius: 10px;
background: var(--scroll-bar-thumb);
}
/* Handle on hover */
#pages-container::-webkit-scrollbar-thumb:hover {
background: var(--scroll-bar-thumb-hover);
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}
.page-container {
use horizontal scroll for pages container By making small thumbnails and aligning everything horizontally the space on the screen is used better.
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height:250px;
display: flex;
align-items: center;
flex-direction: column-reverse;
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aspect-ratio: 1;
text-align: center;
position: relative;
fixes
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user-select: none;
use horizontal scroll for pages container By making small thumbnails and aligning everything horizontally the space on the screen is used better.
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}
.page-container img {
max-width: calc(100% - 15px);
max-height: calc(100% - 15px);
display: block;
position: absolute;
left: 50%;
top: 50%;
translate: -50% -50%;
box-shadow: 0 0 10px rgba(0,0,0);
fixes
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transition: rotate 0.3s;
Created a page for visually editing individual pages of a pdf
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}
.page-container .button-container {
use horizontal scroll for pages container By making small thumbnails and aligning everything horizontally the space on the screen is used better.
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z-index: 2;
display:flex;
Created a page for visually editing individual pages of a pdf
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}
.page-container .button-container > * {
padding: 0.25rem 0.5rem;
margin: 3px;
display: block;
}
.page-container svg {
width: 16px;
height: 16px;
}
use horizontal scroll for pages container By making small thumbnails and aligning everything horizontally the space on the screen is used better.
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.page-container:nth-child(1) .move-left-button {
display: none;
Created a page for visually editing individual pages of a pdf
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}
use horizontal scroll for pages container By making small thumbnails and aligning everything horizontally the space on the screen is used better.
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.page-container:last-child .move-right-button {
display: none;
Created a page for visually editing individual pages of a pdf
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}
fixes
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/* "insert pdf" buttons that appear on the right when hover */
.insert-file-button-container {
translate: 0 -50%;
use horizontal scroll for pages container By making small thumbnails and aligning everything horizontally the space on the screen is used better.
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width: 80px;
height: 100%;
fixes
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z-index: 1;
opacity: 0;
transition: opacity 0.2s;
}
use horizontal scroll for pages container By making small thumbnails and aligning everything horizontally the space on the screen is used better.
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.insert-file-button-container.left {
left: -20px;
}
.insert-file-button-container.right {
right: -20px;
}
.insert-file-button-container.align-center-right {
display:none;
}
.insert-file-button-container.left .insert-file-button {
left: 0;
translate: 0 -50%;
}
.insert-file-button-container.right .insert-file-button {
right: 0;
translate: 0 -50%;
}
.page-container:last-child > .insert-file-button-container.right {
display: block;
}
fixes
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.insert-file-button-container:hover {
opacity: 1;
transition: opacity 0.05s;
}
.insert-file-button {
centre align, colour stuff and home icons
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position: absolute;
top: 50%;
right: 50%;
translate: 50% -50%;
fixes
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aspect-ratio: 1;
centre align, colour stuff and home icons
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border-radius: 100px;
fixes
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}
Created a page for visually editing individual pages of a pdf
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#add-pdf-button {
margin: 0 auto;
}
</style>
</body>
</html>
Reference in a new issue Copy permalink